Tag and Probe useful setting

Binned Fit seetting

    binsForMassPlots = cms.uint32(50),
    binnedFit = cms.bool(True),
    binsForFit = cms.uint32(50),

Probability Distribution Function

  • Trigger efficiency : CrystalBall? + Exponential function
    PDFs = cms.PSet(
      cbPlusExpo = cms.vstring(
        "CBShape::signal(mass, mean[3.1,3.0,3.2], sigma[0.05,0.01,0.1], alpha[1.0, 0.2, 3.0], n[2, 0.5, 100.])",
        "Exponential::backgroundPass(mass, lp[0,-5,5])",
        "Exponential::backgroundFail(mass, lf[0,-5,5])",
        "efficiency[0.9,0,1]",
        "signalFractionInPassing[0.9]"
      ),  
    ), 
  • Tracking efficiency : Gaussian + 2nd (3rd) polynomial
      gaussPlusPoly = cms.vstring(
        #"Gaussian::signal(mass, mean[3.1,3.0,3.2], sigma[0.200])", ## on first heavy ion data
        "Gaussian::signal(mass, mean[3.1,3.0,3.2], sigma[0.15,0.05,0.25])", ## nominal fit setting
        "Chebychev::backgroundPass(mass, {cPass[0,-0.5,0.5], cPass2[0,-0.5,0.5]})",
        "Chebychev::backgroundFail(mass, {cFail[0,-0.5,0.5], cFail2[0,-0.5,0.5]})",
        "efficiency[0.9,0,1]",
        "signalFractionInPassing[0.9]"
      ),  

      gaussPlusPoly = cms.vstring(
        #"Gaussian::signal(mass, mean[3.1,3.0,3.2], sigma[0.200])", ## on first heavy ion data
        "Gaussian::signal(mass, mean[3.1,3.0,3.2], sigma[0.15,0.05,0.25])", ## nominal fit setting
        "Chebychev::backgroundPass(mass, {cPass[0,-0.5,0.5], cPass2[0,-0.5,0.5], cPass3[0,-0.5,0.5]})",
        "Chebychev::backgroundFail(mass, {cFail[0,-0.5,0.5], cFail2[0,-0.5,0.5], cFail3[0,-0.5,0.5]})",
        "efficiency[0.9,0,1]",
        "signalFractionInPassing[0.9]"
      ),  
  • two Gaussian + 2nd polynomial
      twoGaussPlusPoly = cms.vstring(
        "Gaussian::signal1(mass, mean[3.1,3.0,3.2], sigma[0.10,0.05,0.25])",
        "Gaussian::signal2(mass, mean, sigma2[0.15,0.05,0.25])",
        "SUM::signal(vFrac[0.8,0,1]*signal1, signal2)",
        "Chebychev::backgroundPass(mass, {cPass[0,-0.5,0.5], cPass2[0,-0.5,0.5]})",
        "Chebychev::backgroundFail(mass, {cFail[0,-0.5,0.5], cFail2[0,-0.5,0.5]})",
        "efficiency[0.9,0,1]",
        "signalFractionInPassing[0.9]"
      ),

-- DongHoMoon - 26 Jan 2013

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Topic revision: r1 - 2013-01-26 - DongHoMoon
 
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