Difference: JiHyunsLogBtoJPsiJan (7 vs. 8)

• 9 Jan 2008

1. 1. 1. To prepare presentation files for HI meeting of 11/Jan/2008
         1. To show generation information(eta, pt) using module, genParticleCandidates
            • Displaced muons preselected by dimuon filter in the region of |eta| < 2.4? -> I think so. But more statistics are needed(more than 3000 events) for sure.
            • muons/bastMuons(1000events) = 0.81 -> muons/bestMuons(3000events) = 0.9 : What does this mean? I think if I increase number of events, muons/bestMuons ~ 1.
            • The order of path effects the results or not? -> NO EFFECT!!
              1. path p1 = { mumufilter, genParticleCandidates, psim, pdigi} = { mumufilter, psim, genParticleCandidates, pdigi}
              2. genParticleCandidates is also produced by reconstruction
         2. With this sample, HLTriggering was excuted.

• 11 Jan 2008
  • Presentations in HI fortnightly meeting
    1. ppts (SecondaryJpsi_11Jan08)
    2. Olga asked me why there were 2 peaks in Pt spectra of generated muons

• 17 Jan 2008

1. 1. 1. Comparing 2 events
         • B3000_JPsifilter_dimuonfilter(|eta| < 2.4)_genParticleCandidates : For studying JPsifilter removes 1 peak in pt spectra of generated muons
           • Using /net/hisrv0001/home/jkim/CMSSW_1_5_4/src/Bevents/GEN_DIGI/BBar2Jpsi_digi.cfg

              /net/pstore01/d00/scratch/jkim/b3000_FEVTSIM_genCand_jspidimufil.root 

         • B1000_dimuonfilter(|eta| < 10.0)_genParticleCandidates : For studying dimuonfilter preselects displaced muons or not
           • Using /net/hisrv0001/home/jkim/CMSSW_1_5_4/src/Bevents/GEN_DIGI/BBar2Jpsi_digi_nopresel.cfg

              /net/pstore01/d00/scratch/jkim/b1000_FEVTSIM_genCand_dimufil_nopresel.root 

• 18 Jan 2008

1. 1. 1. Comparing preselected and non-preselected 1000 events(only use dimuonfilter)
         • In the case of preseleceted, bestMuons/muons = 2923 / 3227 = 0.81
         • In the case of non-preselected, bestMuons/muons = 2429 / 3693 = 0.66
         • -> My conclusion : Preseslection by dimuonfilter is working, but the percentage of preselection by dimuonfilter is not 100%. But I guess if statistics is larger than 3000, maybe bestMuons/muons will be ~ 1.
      2. B3000_dimuonfilter(|eta| < 2.4)_genParticleCanddates : For studying difference with genParticleCandidates and Reconstruction
         • Using /net/hisrv0001/home/jkim/CMSSW_1_5_4/src/Bevents/GEN_DIGI/BBar2Jpsi_digi_presel.cfg

           /net/pstore01/d00/scratch/jkim/b3000_FEVTSIM_genCand_dimufil.root

      3. Making QM08 poster using by Adobe Indesign CS3

• 25 Jan 2008
  • CMS HI meeting : QM'08 rehearsal
    • Comments from Olga and David
      1. Generate more 'B-> only J/Psi-> only mu+mu-' events(~100000)
      2. Apply cuts( |eta|<2.4, Pt>3.5) for the CMS
      3. Gaussian fit and scale up
         • Gaussian (or 2-Gaussian) fit to dN/deta, scaled-up to match expected yield for 0.5 nb-1 (note that you have to scale p-p to Pb-Pb, multiplying by 208*208, and then by 0.5 nb-1)
      4. extend Pt range
         • Ideally the pT reach should match the expected statistics for 0.5 nb-1. So you will have to fit the dN/dpT with a power-law to extend the tail beyond your generated events.
      5. Normalize y-axis with nominal luminosity like Fig. 7

• 30 Jan 2008

1. 1. 1. Drawing normalized plots with intergrated luminosity for QM08

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-- JiHyunKim - 17 Jan 2008