JPsi Cut Studies using MC and real HI data

MC-Jpsi embedded in MB HI data

we studied efficiency for siganls in various cut values and we get 98% in new rapidity bins, (0,1.2), (1.2, 1.6), (1.6, 2.4)

Data-Tuning the cuts for Jpsi

Run on data

/castor/cern.ch/cms/store/caf/user/tdahms/HeavyIons/Onia/Data2010/v4/Skims/Prompt/150256-150619/
/castor/cern.ch/cms/store/caf/user/tdahms/HeavyIons/Onia/Data2010/v4/Skims/Prompt/150844-153368/

The outfiles are

/castor/cern.ch/user/p/pshukla/HIdata/JpsiCutData1
/castor/cern.ch/user/p/pshukla/HIdata/JpsiCutData2

We studued efficiency for signals and for rejection of Background in various cut values and tried to tune the cuts by plotting S/BG ratio plots.

We chose the following cuts for Jpsi.

mu_innerTrackHits > 10
mu_pixeLayers > 0
mu_innerTrack_chi2NDOF < 2.0
mu_dxy < 0.1 cm
mu_dz < 15. cm
mu_globalTrack_chi2NDOF < 20
mu_validMuHits > 0
vProb > 0.01

The study with MC, Data and S/BG plots with these cuts are attached.

  • JPsiLat.pdf: Documentation for Cut Studies For JPsi using MC and data

* JPsiLat_M3.pdf: update of document for JPsi cut studies

  • SBG.pdf: It is signal to background ratio plots for data, with cuts that we chose.

  • JPsiDataCutTree.pdf: Jpsi cut studies with data for signal extraction and background rejection efficiencies. The study meant for tuning the cuts for Jpsi and presented at dilepton meeting on Feb-1.

  • JPsi_MC_CutTree.pdf: This is Jpsi cut studies with MC for signal extraction efficiency in rapidity bins [(0, 1.2), (1.2, 1.6), (1.6, 2.4)].

* JPsiCut_M7.pdf: update of JPsi cut studies

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf HI_Feb22.pdf r1 manage 178.0 K 2011-02-22 - 09:55 AbdullaAbdulsalam JPsi cut studies-Feb_22
PDFpdf JPsiCut_M7.pdf r1 manage 324.0 K 2011-03-07 - 14:19 AbdullaAbdulsalam update of JPsi cut studies
PDFpdf JPsiCut_Mar15.pdf r1 manage 355.3 K 2011-03-15 - 09:07 AbdullaAbdulsalam update of JPsi cut studies
PDFpdf JPsiDataCutFeb1.pdf r1 manage 812.3 K 2011-02-04 - 11:13 AbdullaAbdulsalam  
PDFpdf JPsiDataCutTree.pdf r1 manage 758.1 K 2011-02-04 - 14:00 AbdullaAbdulsalam  
PDFpdf JPsiLat.pdf r2 r1 manage 258.7 K 2011-03-03 - 12:57 AbdullaAbdulsalam update of document for JPsi cut studies
PDFpdf JPsiLat_M3.pdf r1 manage 258.7 K 2011-03-03 - 13:01 AbdullaAbdulsalam update of document for JPsi cut studies
PDFpdf JPsiMCCutTree.pdf r1 manage 289.1 K 2011-02-04 - 12:29 AbdullaAbdulsalam  
PDFpdf JPsi_M5.pdf r1 manage 304.7 K 2011-03-07 - 10:05 AbdullaAbdulsalam update of JPsi cut studies
PDFpdf JPsi_MC_CutTree.pdf r3 r2 r1 manage 279.0 K 2011-02-07 - 09:23 AbdullaAbdulsalam  
PDFpdf JPsi_Mar10.pdf r1 manage 239.4 K 2011-03-10 - 08:35 AbdullaAbdulsalam update of JPsi cut studies
PDFpdf SBG.pdf r1 manage 67.6 K 2011-02-04 - 13:59 AbdullaAbdulsalam  
PDFpdf Talk_Feb22.pdf r1 manage 178.0 K 2011-02-22 - 10:00 AbdullaAbdulsalam JPsi cut studies
PDFpdf fits_M9.pdf r1 manage 48.7 K 2011-03-09 - 10:21 AbdullaAbdulsalam fits for data
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Topic revision: r15 - 2011-03-15 - AbdullaAbdulsalam
 
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