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7 TeV data with data driven method variable bin sizes

7 TeV data with data driven method variable bin sizes. Process Selection - ak5 calo jets - Trigger 0 AND (36 OR 37 OR 38 OR 39) - Scraping veto - Primary vertex: >= 4 DOF , |z| < 15 cm , |d0| < 2 cm - HLT bits: HLT_Jet15U - JEC: L2+L3 “spring10”

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7 TeV data with data driven method variable bin sizes

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  1. 7 TeV data with data driven method variable bin sizes Process Selection - ak5 calo jets - Trigger 0 AND (36 OR 37 OR 38 OR 39) - Scraping veto - Primary vertex: >= 4 DOF , |z| < 15 cm , |d0| < 2 cm - HLT bits: HLT_Jet15U - JEC: L2+L3 “spring10” - |eta1| < 1.3 && |eta2| < 1.3 - 2 leading jets passing the loose jet id - Jet Pt > 25 GeV - Jets back to back i.e. ||Δφ| - π|<0.2 - |Δη| < 0.8 - Pt ratio between second jet in same event and jet in mix event > 0.8 1 • The analysis using the two leading jets in barrel |eta|<1.3 • In order to keep the same topology in both same event and mix event, we are using the eta swap method between a jet in current event and a jet in previous event Dataset: /MinimumBias/Commissioning10-SD_JetMETTau-Jun14thSkim_v1/RECODataset: /JetMETTau/Run2010A-Jun14thReReco_v2/RECO Dataset: /JetMETTau/Run2010A-PromptReco-v4/RECO JSON file: Cert_135059-135735_7TeV_June14thReReco_Collisions10_JSON.txtJSON file: Cert_136066-137028_7TeV_June14thReReco_Collisions10_JSON.txtJSON file: Cert_138564-140076_7TeV_StreamExpress_Collisions10_JSON.txt With CMSSW_3_7_0_patch2 and PAT

  2. M(jj) of the two leading of same event and mix event Same Events Mixed Events 2 Bin size for each range 2 GeV/bin from 30 to 120 5 GeV/bin from 120 to 150 10 GeV/bin from 150-250 25 GeV/bin from 250-300 50 GeV/bin from 300-400 100 GeV/bin from 400-500

  3. M(jj) of same event and mix event after normalizations Same event 200-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 3 Using area 200 to 500 GeV

  4. Comparison between before and after subtraction After subtraction Before subtraction 4 Using area 200 to 500 GeV Zoom-in After subtraction

  5. After subtraction 5 From 50 to 150 GeV Using area 200 to 500 GeV

  6. Comparisons between After subtraction of pT>25 and pT>30 6 From 50 to 150 GeV Detail on pT >30 is on http://highenergy.phys.ttu.edu/~keng/susy/plots/7TeV_DD_absEta08__Ptratio08_VarBinV4.pdf

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