Difference: JiHyunsLogBtoJPsi (1 vs. 25)

Revision 252008-09-15 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="SKYBLUE" weekendcolor="PINK"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session smile
  • 8 Feb - HI East
  • 10 Feb - QM'08 finish!!
  • 15 Feb - HI West

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

Changed:
<
<

May. 2008

>
>

May 2008

Added:
>
>

Sept. 2008

 

Presentations in Conference

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"

Revision 242008-05-30 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="SKYBLUE" weekendcolor="PINK"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session smile
  • 8 Feb - HI East
  • 10 Feb - QM'08 finish!!
  • 15 Feb - HI West

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

Changed:
<
<
>
>

May. 2008

 

Presentations in Conference

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"

Revision 232008-02-14 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="SKYBLUE" weekendcolor="PINK"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session smile
  • 8 Feb - HI East
  • 10 Feb - QM'08 finish!!
  • 15 Feb - HI West

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

Changed:
<
<

Quark Matter 2008 Poster

>
>

Presentations in Conference

  • Quark Matter 2008 : Poster
Added:
>
>
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"

Revision 222008-02-14 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

Changed:
<
<
%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK"}%
>
>
%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="SKYBLUE" weekendcolor="PINK"}%
 
  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
Changed:
<
<
  • 6 Feb - QM'08 poster session
>
>
  • 6 Feb - QM'08 poster session smile
 
  • 8 Feb - HI East
  • 10 Feb - QM'08 finish!!
Added:
>
>
  • 15 Feb - HI West
 
Added:
>
>
 

Progress Log

Changed:
<
<

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

>
>

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

 

Quark Matter 2008 Poster

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"

Revision 212008-02-11 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

Changed:
<
<
%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK"}%
>
>
%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekdayheadercolor="YELLOW" weekendheadercolor="YELLOW" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK"}%
 
  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session
  • 8 Feb - HI East
  • 10 Feb - QM'08 finish!!

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2008

Feb. 2008

Changed:
<
<

QM'08 Poster

>
>

Quark Matter 2008 Poster

 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"

Revision 202008-02-08 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

Changed:
<
<
%CALENDAR{ headercolor="MAROON" headercontentcolor="WHITE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK" }%
>
>
%CALENDAR{ weekstartsonmonday="1" headercolor="MAROON" headercontentcolor="WHITE" weekendheadercontentcolor="PURPLE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK"}%
 
  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session
Added:
>
>
  • 8 Feb - HI East
 
  • 10 Feb - QM'08 finish!!

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Changed:
<
<

Jan. 2007

>
>

Jan. 2008

Feb. 2008

 
Changed:
<
<

References

>
>

QM'08 Poster

Added:
>
>
 
Added:
>
>

References

 
<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Added:
>
>
META FILEATTACHMENT attachment="QM08poster_Bmeson_2Feb08.pdf" attr="" comment="" date="1202478969" name="QM08poster_Bmeson_2Feb08.pdf" path="C:\QM08poster_Bmeson_2Feb08.pdf" size="1620686" stream="C:\QM08poster_Bmeson_2Feb08.pdf" user="Main.JiHyunKim" version="1"
 

Revision 192008-02-05 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{ headercolor="MAROON" headercontentcolor="WHITE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK" }%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session
  • 10 Feb - QM'08 finish!!

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2007

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 182008-02-05 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

Changed:
<
<
%CALENDAR{showweekdayheaders="1"}%
>
>
%CALENDAR{ headercolor="MAROON" headercontentcolor="WHITE" vcellalignment="middle" showweekdayheaders="1" todaycolor="AQUA" weekendcolor="PINK" }%
Added:
>
>
 
  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
  • 11 Jan - HI East mtg.
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
Added:
>
>
  • 1 Feb - HI West
  • 4 Feb - QM'08 start!!
  • 6 Feb - QM'08 poster session
  • 10 Feb - QM'08 finish!!
 

Progress Log

Aug. 2007

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2007

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 172008-01-22 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
Changed:
<
<
  • 11 Jan - HI fortnightly mtg.
>
>
  • 11 Jan - HI East mtg.
Added:
>
>
  • 18 Jan - HI West mtg.
  • 25 Jan - HI East mtg.(QM08 rehearsal)
 

Progress Log

Added:
>
>

Aug. 2007

 

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2007

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 162008-01-17 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
Added:
>
>
  • 11 Jan - HI fortnightly mtg.
 

Progress Log

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2007

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 152007-12-20 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
Changed:
<
<

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
>
>

Progress Log

Sep. 2007

Oct. 2007

Nov. 2007

Dec. 2007

Jan. 2007

Deleted:
<
<
      1. Mixing B->J/Psi event with heavy ion background(Hydjet).
      2. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents

  • 13 Dec 2007
    • To Do
      1. Check Dong Ho's question to L1 tirgger group
        • lowqualityFlag information in the L1Trigger?/CSCTrackFinder/data/CSCTrackFinder.cfi (Dong Ho)
          • 0 = none, 1 = DT/CSC overlap, 2 = ME 1/1a, 3 = both, 4 = everywhere
        • The eta coverage is also limited for single muon triggers in pp collisions because ME1/1a (the inner radius part of the ME1/1 chamber) does not participate in the trigger, and hence we do not get a good sagitta measurement. Pt resolution suffers, and rate would be high. But the CSC Track-Finder anyway sends low quality candidates from regions where there is only coverage by ME4, ME3, and ME2. So no reason to change the flag you list from its default of "4" in the CSCTrackFinder?.cfi. What would have to change is how GMT or GT uses such low quality muons. By default only the dimuon trigger allows them at high eta. So this is a question to GT/GMT experts. ( Darin )
        • in fact all CSCTF candidates become GMT candidates (if they are not suppressed by an equivalent DTTF one) and all are passed to GT. The GMT candidates carry the quality information with them. The way low quality bits are set in the GMT candidates is described in the note CMS IN 2004/006 page 4. Candidates with quality lower than 4 (see the note) get suppressed in the standard single muon GT conditions. So the way to extend the single muon trigger to a wider range would be to add a single muon GT algorithm with no quality restriction. Probably the most practical way is to simply look at GMT candidates(from L1MuGMTReadoutCollection?) in unfiltered data. ( Ivan )
      2. Check CMSSW/HLTrigger/Configuration/data/common/HLTSetupCase1.cff for L1 setup.
        • include "Configuration/StandardSequences/data/L1Emulator.cff" -> include "L1Trigger/Configuration/data/L1Emulator.cff"
        • include "Configuration/StandardSequences/data/L1Extra.cff" -> include "L1Trigger/Configuration/data/L1Extra.cff"

    • Q1 : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
      • If they are independent HLT triggers, then this is automatically ORed: an event is accepeted if any of the HLT triggers accepts it (== OR). Also, you could write ONE filter whose filter condition is a Boolean OR of the conditions you want - this maybe appropriate for very tightly connected "single" triggers, using the same quantities to trigger on.(Martin Gruenewald)
    • Q2 : parameters, MinPt?, MinEta?, etc. are working well? -> Ask to Evt Filter group.
    • Q3 : CMSSW/L1Trigger/Configuration/data/L1Emulator.cff in CMSSW_1_6_6
      include "L1Trigger/Configuration/data/L1MuonEmulator.cff"
      include "L1Trigger/Configuration/data/L1CaloEmulator.cff" 
      include "L1Trigger/GlobalTrigger/data/l1GtEmulDigis.cfi"
      
      sequence L1Emulator = { L1CaloEmulator, L1MuonEmulator }
      
      // GT emulator will be included by default in 170 series
      // For the L1 decision in 160, run L1Extra sequence
      // defined in L1Trigger/Configuration/data/L1Extra.cff
    • Q4 : CMSSW/L1Trigger/Configuration/data/L1Extra.cff in CMSSW_1_6_6
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticles.cff"
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticleMap.cfi"
      
      sequence L1Extra = { l1extraParticles, l1extraParticleMap }

L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cff -> L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cfi -> module l1extraParticles = L1ExtraParticlesProd
Looking into L1Trigger?/L1ExtraFromDigis/src/L1ExtraParticlesProd.cc

 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 142007-12-15 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents

  • 13 Dec 2007
    • To Do
      1. Check Dong Ho's question to L1 tirgger group
        • lowqualityFlag information in the L1Trigger?/CSCTrackFinder/data/CSCTrackFinder.cfi (Dong Ho)
Changed:
<
<
* 0 = none, 1 = DT/CSC overlap, 2 = ME 1/1a, 3 = both, 4 = everywhere
>
>
          • 0 = none, 1 = DT/CSC overlap, 2 = ME 1/1a, 3 = both, 4 = everywhere
 
        • The eta coverage is also limited for single muon triggers in pp collisions because ME1/1a (the inner radius part of the ME1/1 chamber) does not participate in the trigger, and hence we do not get a good sagitta measurement. Pt resolution suffers, and rate would be high. But the CSC Track-Finder anyway sends low quality candidates from regions where there is only coverage by ME4, ME3, and ME2. So no reason to change the flag you list from its default of "4" in the CSCTrackFinder?.cfi. What would have to change is how GMT or GT uses such low quality muons. By default only the dimuon trigger allows them at high eta. So this is a question to GT/GMT experts. ( Darin )
        • in fact all CSCTF candidates become GMT candidates (if they are not suppressed by an equivalent DTTF one) and all are passed to GT. The GMT candidates carry the quality information with them. The way low quality bits are set in the GMT candidates is described in the note CMS IN 2004/006 page 4. Candidates with quality lower than 4 (see the note) get suppressed in the standard single muon GT conditions. So the way to extend the single muon trigger to a wider range would be to add a single muon GT algorithm with no quality restriction. Probably the most practical way is to simply look at GMT candidates(from L1MuGMTReadoutCollection?) in unfiltered data. ( Ivan )
      1. Check CMSSW/HLTrigger/Configuration/data/common/HLTSetupCase1.cff for L1 setup.
        • include "Configuration/StandardSequences/data/L1Emulator.cff" -> include "L1Trigger/Configuration/data/L1Emulator.cff"
        • include "Configuration/StandardSequences/data/L1Extra.cff" -> include "L1Trigger/Configuration/data/L1Extra.cff"

    • Q1 : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
      • If they are independent HLT triggers, then this is automatically ORed: an event is accepeted if any of the HLT triggers accepts it (== OR). Also, you could write ONE filter whose filter condition is a Boolean OR of the conditions you want - this maybe appropriate for very tightly connected "single" triggers, using the same quantities to trigger on.(Martin Gruenewald)
    • Q2 : parameters, MinPt?, MinEta?, etc. are working well? -> Ask to Evt Filter group.
    • Q3 : CMSSW/L1Trigger/Configuration/data/L1Emulator.cff in CMSSW_1_6_6
      include "L1Trigger/Configuration/data/L1MuonEmulator.cff"
      include "L1Trigger/Configuration/data/L1CaloEmulator.cff" 
      include "L1Trigger/GlobalTrigger/data/l1GtEmulDigis.cfi"
      
      sequence L1Emulator = { L1CaloEmulator, L1MuonEmulator }
      
      // GT emulator will be included by default in 170 series
      // For the L1 decision in 160, run L1Extra sequence
      // defined in L1Trigger/Configuration/data/L1Extra.cff
    • Q4 : CMSSW/L1Trigger/Configuration/data/L1Extra.cff in CMSSW_1_6_6
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticles.cff"
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticleMap.cfi"
      
      sequence L1Extra = { l1extraParticles, l1extraParticleMap }

L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cff -> L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cfi -> module l1extraParticles = L1ExtraParticlesProd
Looking into L1Trigger?/L1ExtraFromDigis/src/L1ExtraParticlesProd.cc

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 132007-12-14 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents

  • 13 Dec 2007
    • To Do
      1. Check Dong Ho's question to L1 tirgger group
        • lowqualityFlag information in the L1Trigger?/CSCTrackFinder/data/CSCTrackFinder.cfi (Dong Ho) * 0 = none, 1 = DT/CSC overlap, 2 = ME 1/1a, 3 = both, 4 = everywhere
        • The eta coverage is also limited for single muon triggers in pp collisions because ME1/1a (the inner radius part of the ME1/1 chamber) does not participate in the trigger, and hence we do not get a good sagitta measurement. Pt resolution suffers, and rate would be high. But the CSC Track-Finder anyway sends low quality candidates from regions where there is only coverage by ME4, ME3, and ME2. So no reason to change the flag you list from its default of "4" in the CSCTrackFinder?.cfi. What would have to change is how GMT or GT uses such low quality muons. By default only the dimuon trigger allows them at high eta. So this is a question to GT/GMT experts. ( Darin )
        • in fact all CSCTF candidates become GMT candidates (if they are not suppressed by an equivalent DTTF one) and all are passed to GT. The GMT candidates carry the quality information with them. The way low quality bits are set in the GMT candidates is described in the note CMS IN 2004/006 page 4. Candidates with quality lower than 4 (see the note) get suppressed in the standard single muon GT conditions. So the way to extend the single muon trigger to a wider range would be to add a single muon GT algorithm with no quality restriction. Probably the most practical way is to simply look at GMT candidates(from L1MuGMTReadoutCollection?) in unfiltered data. ( Ivan )
      2. Check CMSSW/HLTrigger/Configuration/data/common/HLTSetupCase1.cff for L1 setup.
        • include "Configuration/StandardSequences/data/L1Emulator.cff" -> include "L1Trigger/Configuration/data/L1Emulator.cff"
        • include "Configuration/StandardSequences/data/L1Extra.cff" -> include "L1Trigger/Configuration/data/L1Extra.cff"

    • Q1 : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
      • If they are independent HLT triggers, then this is automatically ORed: an event is accepeted if any of the HLT triggers accepts it (== OR). Also, you could write ONE filter whose filter condition is a Boolean OR of the conditions you want - this maybe appropriate for very tightly connected "single" triggers, using the same quantities to trigger on.(Martin Gruenewald)
    • Q2 : parameters, MinPt?, MinEta?, etc. are working well? -> Ask to Evt Filter group.
    • Q3 : CMSSW/L1Trigger/Configuration/data/L1Emulator.cff in CMSSW_1_6_6
      include "L1Trigger/Configuration/data/L1MuonEmulator.cff"
      include "L1Trigger/Configuration/data/L1CaloEmulator.cff" 
      include "L1Trigger/GlobalTrigger/data/l1GtEmulDigis.cfi"
      
      sequence L1Emulator = { L1CaloEmulator, L1MuonEmulator }
      
      // GT emulator will be included by default in 170 series
      // For the L1 decision in 160, run L1Extra sequence
      // defined in L1Trigger/Configuration/data/L1Extra.cff
    • Q4 : CMSSW/L1Trigger/Configuration/data/L1Extra.cff in CMSSW_1_6_6
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticles.cff"
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticleMap.cfi"
      
      sequence L1Extra = { l1extraParticles, l1extraParticleMap }
Changed:
<
<
L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cff -> L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cfi -> module l1extraParticles = L1ExtraParticlesProd
>
>
L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cff -> L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cfi -> module l1extraParticles = L1ExtraParticlesProd
Added:
>
>
Looking into L1Trigger?/L1ExtraFromDigis/src/L1ExtraParticlesProd.cc
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 122007-12-13 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents

  • 13 Dec 2007
Changed:
<
<
    • Q : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
>
>
    • To Do
Added:
>
>
      1. Check Dong Ho's question to L1 tirgger group
        • lowqualityFlag information in the L1Trigger?/CSCTrackFinder/data/CSCTrackFinder.cfi (Dong Ho) * 0 = none, 1 = DT/CSC overlap, 2 = ME 1/1a, 3 = both, 4 = everywhere
        • The eta coverage is also limited for single muon triggers in pp collisions because ME1/1a (the inner radius part of the ME1/1 chamber) does not participate in the trigger, and hence we do not get a good sagitta measurement. Pt resolution suffers, and rate would be high. But the CSC Track-Finder anyway sends low quality candidates from regions where there is only coverage by ME4, ME3, and ME2. So no reason to change the flag you list from its default of "4" in the CSCTrackFinder?.cfi. What would have to change is how GMT or GT uses such low quality muons. By default only the dimuon trigger allows them at high eta. So this is a question to GT/GMT experts. ( Darin )
        • in fact all CSCTF candidates become GMT candidates (if they are not suppressed by an equivalent DTTF one) and all are passed to GT. The GMT candidates carry the quality information with them. The way low quality bits are set in the GMT candidates is described in the note CMS IN 2004/006 page 4. Candidates with quality lower than 4 (see the note) get suppressed in the standard single muon GT conditions. So the way to extend the single muon trigger to a wider range would be to add a single muon GT algorithm with no quality restriction. Probably the most practical way is to simply look at GMT candidates(from L1MuGMTReadoutCollection?) in unfiltered data. ( Ivan )
      2. Check CMSSW/HLTrigger/Configuration/data/common/HLTSetupCase1.cff for L1 setup.
        • include "Configuration/StandardSequences/data/L1Emulator.cff" -> include "L1Trigger/Configuration/data/L1Emulator.cff"
        • include "Configuration/StandardSequences/data/L1Extra.cff" -> include "L1Trigger/Configuration/data/L1Extra.cff"

    • Q1 : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
 
      • If they are independent HLT triggers, then this is automatically ORed: an event is accepeted if any of the HLT triggers accepts it (== OR). Also, you could write ONE filter whose filter condition is a Boolean OR of the conditions you want - this maybe appropriate for very tightly connected "single" triggers, using the same quantities to trigger on.(Martin Gruenewald)
Added:
>
>
    • Q2 : parameters, MinPt?, MinEta?, etc. are working well? -> Ask to Evt Filter group.
    • Q3 : CMSSW/L1Trigger/Configuration/data/L1Emulator.cff in CMSSW_1_6_6
      include "L1Trigger/Configuration/data/L1MuonEmulator.cff"
      include "L1Trigger/Configuration/data/L1CaloEmulator.cff" 
      include "L1Trigger/GlobalTrigger/data/l1GtEmulDigis.cfi"
      
      sequence L1Emulator = { L1CaloEmulator, L1MuonEmulator }
      
      // GT emulator will be included by default in 170 series
      // For the L1 decision in 160, run L1Extra sequence
      // defined in L1Trigger/Configuration/data/L1Extra.cff
    • Q4 : CMSSW/L1Trigger/Configuration/data/L1Extra.cff in CMSSW_1_6_6
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticles.cff"
      include "L1Trigger/L1ExtraFromDigis/data/l1extraParticleMap.cfi"
      
      sequence L1Extra = { l1extraParticles, l1extraParticleMap }

L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cff -> L1Trigger?/L1ExtraFromDigis/data/l1extraParticles.cfi -> module l1extraParticles = L1ExtraParticlesProd

 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 112007-12-13 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents
Added:
>
>

  • 13 Dec 2007
    • Q : Can filters be in "OR" mode?(Answered in Hyper News : Event Filter Development)
      • If they are independent HLT triggers, then this is automatically ORed: an event is accepeted if any of the HLT triggers accepts it (== OR). Also, you could write ONE filter whose filter condition is a Boolean OR of the conditions you want - this maybe appropriate for very tightly connected "single" triggers, using the same quantities to trigger on.(Martin Gruenewald)
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 102007-12-12 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 22 Oct 2007
    • Started studying Pythia generator
Changed:
<
<
* How to use pythia in cfgs * Investigated examples in Configuration/Examples/data
>
>
      • How to use pythia in cfgs
      • Investigated examples in Configuration/Examples/data
 
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
          Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.

  • 11 Dec 2007
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 92007-12-11 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.
Added:
>
>
  • 22 Oct 2007
    • Started studying Pythia generator * How to use pythia in cfgs * Investigated examples in Configuration/Examples/data
        • SimExample?.cfg, DigiRecoExample?.cfg.

  • 1 Nov 2007
    • Started studying L1
    • Started studying HLT
 
  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
Changed:
<
<
Above things are also in the HYDJET.cfg.[[
>
>
Above things are also in the HYDJET.cfg.( HeavyIonMCProduction )
 

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
        InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS

  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi
Changed:
<
<
: If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237)
>
>
: If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237) Checked hltBToJpsi path. It works. Need to think about preselection.
 
  • 11 Dec 2007
Added:
>
>
    • To Do
      1. How to deal with "preselection" -> Check with 500 events.
        • Does mufilter play a role for preselection? Yes or No?
        • Is another filter needed after mufilter for preselection? Yes or No?
        • Is anothet cfg file needed only for preselection? Yes or No?
      2. Look into TestMuL1L2? module
      3. Look into Mixing Module
      4. Read OL1 documents
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 82007-12-11 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
Above things are also in the HYDJET.cfg.[[

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
Changed:
<
<
      1. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency.
>
>
      1. Modify analysis_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency.
  -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
untracked InputTag GMTInputTag = l1GmtEmulDigis // For Level-1 trigger
InputTag  CandTag = hltL2Muons // For Level-2 trigger 

  • 8 Dec 2007
    • Post Analysis Note on iCMS
Added:
>
>
  • 10 Dec 2007
    • Got GRID certificate from CERN
    • VO Registration is needed
    • Produced BBarToJpsi?_DIGI 3000 events in MIT -> /tmp/jkim -> /castor/cern.ch/user/j/jkim/SecondaryJpsi : If I want use /tmp/jkim, I must login the same machine. (ex. ssh lxplus237)

  • 11 Dec 2007
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 72007-12-10 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
Above things are also in the HYDJET.cfg.[[

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
Changed:
<
<
untracked InputTag? = l1GmtEmulDigis // For Level-1 trigger
>
>
untracked InputTag? GMTInputTag? = l1GmtEmulDigis // For Level-1 trigger
Added:
>
>
InputTag? CandTag? = hltL2Muons // For Level-2 trigger

  • 8 Dec 2007
    • Post Analysis Note on iCMS
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 62007-12-10 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

Changed:
<
<
  • 23 Nov - HI fortnightly mtg.
>
>
  • 23 Nov - HI fortnightly mtg.
Added:
>
>
  • 07 Dec - HI fortnightly mtg.
  • 14 Dec - CMS week HI mtg.
  • 15 Dec - CMS week HI mtg.
 

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
          include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi"
             replace VtxSmeared.MinX = 0.0001
             replace VtxSmeared.MaxX = 0.0001
             replace VtxSmeared.MinY = 0.0002
             replace VtxSmeared.MaxY = 0.0002
             replace VtxSmeared.MinZ = 2.
             replace VtxSmeared.MaxZ = 2. 
Above things are also in the HYDJET.cfg.[[

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag = l1GmtEmulDigis // For Level-1 trigger 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 52007-12-05 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study in lxplus
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/test/
      cmsRun hltBToJPsiToMumu.cfg

  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
          ssh jkim@cgate.mit.edu
          ssh -Y hibat0001 // For interactive access
          scramv1 project CMSSW CMSSW_1_5_4
          cd CMS_1_5_4/src
          eval `scramv1 runtime -csh`
          cd Bevents/GEN_DIGI
          cmsRun BBar2Jpsi.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root" 
      2. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg,
      3. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
Changed:
<
<
        1. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
>
>
        1. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.
             
Added:
>
>
include "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" replace MinX? = 0.0001 replace MaxX? = 0.0001 replace MinY? = 0.0002 replace MaxY? = 0.0002 replace MinZ? = 2. replace MaxZ? = 2. Above things are also in the HYDJET.cfg.[[
 
  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency. -> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
        untracked InputTag = l1GmtEmulDigis // For Level-1 trigger 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 42007-12-05 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
Changed:
<
<
    • HLT study
>
>
    • HLT study in lxplus
 scramv1 project CMSSW CMSSW_1_6_6 cd CMSSW_1_6_6/src project CMSSW eval `scramv1 runtime -csh` cvs co -r $CMSSW_VERSION HLTrigger/btau/ cvs co -r $CMSSW_VERSION HLTrigger/Muon/ cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
Changed:
<
<
cd HLTrigger/btau/
>
>
cd HLTrigger/btau/test/
Added:
>
>
cmsRun hltBToJPsiToMumu.cfg
 
  • 3 Dec 2007
    • To Do
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
Changed:
<
<
        1. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
>
>
        1. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
Added:
>
>
ssh jkim@cgate.mit.edu ssh -Y hibat0001 // For interactive access scramv1 project CMSSW CMSSW_1_5_4 cd CMS_1_5_4/src eval `scramv1 runtime -csh` cd Bevents/GEN_DIGI cmsRun BBar2Jpsi?.cfg // output file : "/net/pstore01/d00/scratch/jkim/bgenreco1000.root"
 
      1. L1 test
        • With Olga's(Dongho's) code :
          cvs co -r V00-00-02 UserCode/OlgaKodolova
Changed:
<
<
        • Check hltBToJPsiToMumu.cfg
>
>
        • Check hltBToJPsiToMumu.cfg,
 
      1. Mixing
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency.
Added:
>
>
-> digi file is OK. Dongho's analyze_l1l2.cfg is working well. -> Charge, Eta, Pt, Phi...
untracked InputTag = l1GmtEmulDigis // For Level-1 trigger 
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 32007-12-04 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.
Added:
>
>
  • 24 Nov 2007
    • Analysis Note Frozen date : 30. Nov. 2007, Just 1 week left.
    • HLT study
      scramv1 project CMSSW CMSSW_1_6_6
      cd CMSSW_1_6_6/src
      project CMSSW
      eval `scramv1 runtime -csh`
      cvs co -r $CMSSW_VERSION HLTrigger/btau/
      cvs co -r $CMSSW_VERSION HLTrigger/Muon/
      cvs co -r $CMSSW_VERSION HLTtrigger/Configuration/
      cd HLTrigger/btau/
 
  • 3 Dec 2007
    • To Do
Changed:
<
<
      1. To get BToJpsi?_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus
        2. Trial in MIT TIER :
>
>
      1. To get B->Jpsi_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus. -> Done.
        2. Trial in MIT TIER : Merged gen.cfg, sim.cfg and digireco.cfg and get genreco.cfg. and got gendigi.root. Tried to analyze with ana.C(root macro) -> Error
 
      1. L1 test
        • With Olga's(Dongho's) code :

Changed:
<
<
> cvs co -r V00-00-02 UserCode?/OlgaKodolova
>
>
cvs co -r V00-00-02 UserCode?/OlgaKodolova
        • Check hltBToJPsiToMumu.cfg
 
      1. Mixing
Added:
>
>
        1. Send bgen_reco.cfg to Yetkin to make HI events mixing with HYDJET background sample.
        2. He will match the vertex. Normaly I used "Configuration/StandardSequences/data/VtxSmearedGauss.cff" but maybe this time "IOMC/EventVertexGenerators/data/VtxSmearedFlat.cfi" is needed.

  • 4 Dec 2007
    • To Do
      1. Read Mixing module twiki page and send email to Yetkin.(reco.cfg & vertex smearing)
      2. Modify analyze_l1l2.cfg and cmsRun with diversity source file(digi, raw, reco, etc.) to get trigger efficiency.
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 22007-12-03 - JiHyunKim

 
META TOPICPARENT name="JiHyunsLog"
Deleted:
<
<
 

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.
Added:
>
>
  • 3 Dec 2007
    • To Do
      1. To get BToJpsi?_digit.root in CMSSW_1_6_6
        1. Trial in Lxplus : Failed. I can't give a credit about generated root files within Lxplus
        2. Trial in MIT TIER :
      2. L1 test
        • With Olga's(Dongho's) code :
                      > cvs co -r V00-00-02 UserCode/OlgaKodolova
                      
      3. Mixing
 

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

Revision 12007-11-30 - GaramHahn

 
META TOPICPARENT name="JiHyunsLog"

B-meson measurement via Secondary J/Psi production

%CALENDAR{showweekdayheaders="1"}%

  • 23 Nov - HI fortnightly mtg.

Progress Log

  • 20 Sep 2007
    • Started studying B-meson decays to J/Psi for presenting at QM'08
    • Working Plans
      1. Generating B->J/Psi events with Pythia at 5.5TeV.
      2. Simulation, digitization, reconstruction are excuted(|Eta|<2.4, pT>3.5GeV).
      3. Getting GEN & RECO J/Psi Eta, pT, mass spectra and comparing.
      4. Using effective L1/L2 trigger combination option to get best J/Psi trigger efficiency.
      5. Mixing B->J/Psi event with heavy ion background(Hydjet).
      6. Secondary Vertex algorithm is used for distinguishing secondary J/Psi from prompt J/Psi.

  • 12 Oct 2007
    • Presented working plans in heavy ion fortnightly meeting. Collaborate with Prashant in Mumbai for this QM.
      Ji Hyun - L1/L2 triggering Prashant - Secondary Vertexing
    • The reason for studying B->J/Psi events
      • Surprising results from RHIC
        • Heavy quarks(especially b quarks) were predicted to lose less energy than the light quarks.
        • Significant suppression of the yields of heavy-quark decay electrons at high pT.
      • Expectations at LHC
        • Charm & bottom production cross sections are much larger than at RHIC.
        • Effects of energy loss on b quarks can be studied with greater precision.

References

<--
    * Set ALLOWTOPICCHANGE = JihyunKim?
-->

-- GaramHahn - 30 Nov 2007

 
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