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Analysis of Particle Physics Samples and Event Selection Criteria in High-Energy Collisions

This document provides a comprehensive analysis of various particle physics samples utilized in high-energy collisions, specifically focusing on events from CMS experiments. The analysis includes the application of event selection criteria based on lepton characteristics, such as electron and muon selection, and outlines the efficiency of triggers and skimming processes. Moreover, expected event counts for different decay channels associated with Higgs boson production are evaluated, providing insights into potential outcomes across various mass thresholds.

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Analysis of Particle Physics Samples and Event Selection Criteria in High-Energy Collisions

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  1. 4l analysis with PF2PAT June 6, 2012 Jongseok Lee (Sungkyunkwan University)

  2. Used samples /TTTo2L2Nu2B_7TeV-powheg-pythia6/jslee-v2-Fall11_TTTo2L2Nu2B-f99e9bb67aff534e9b6be7177a9a6dd1/USER /DYJetsToLL_TuneZ2_M-50_7TeV-madgraph-tauola/jslee-v2-Fall11_DYJetsToLL_M-50-f99e9bb67aff534e9b6be7177a9a6dd1/USER /DYJetsToLL_M-10To50_TuneZ2_7TeV-madgraph/jslee-v2-Fall11_DYJetsToLL_M-10To50-f99e9bb67aff534e9b6be7177a9a6dd1/USER /ZZJetsTo2L2Q_TuneZ2_7TeV-madgraph-tauola/jslee-v2-Fall11_ZZJetsTo2L2Q-f99e9bb67aff534e9b6be7177a9a6dd1/USER /ZZJetsTo2L2Nu_TuneZ2_7TeV-madgraph-tauola/jslee-v2-Fall11_ZZJetsTo2L2Nu-f99e9bb67aff534e9b6be7177a9a6dd1/USER /ZZJetsTo4L_TuneZ2_7TeV-madgraph-tauola/jslee-v2-Fall11_ZZJetsTo4L-f99e9bb67aff534e9b6be7177a9a6dd1/USER /WZJetsTo3LNu_TuneZ2_7TeV-madgraph-tauola/jslee-v2-Fall11_WZJetsTo3LNu-f99e9bb67aff534e9b6be7177a9a6dd1/USER /WWJetsTo2L2Nu_TuneZ2_7TeV-madgraph-tauola/jslee-v2-Fall11_WWJetsTo2L2Nu-f99e9bb67aff534e9b6be7177a9a6dd1/USER /T_TuneZ2_tW-channel-DR_7TeV-powheg-tauola/jslee-v2-Fall11_T_tW-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /T_TuneZ2_t-channel_7TeV-powheg-tauola/jslee-v2-Fall11_T_t-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /T_TuneZ2_s-channel_7TeV-powheg-tauola/jslee-v2-Fall11_T_s-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /Tbar_TuneZ2_tW-channel-DR_7TeV-powheg-tauola/jslee-v2-Fall11_Tbar_tW-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /Tbar_TuneZ2_t-channel_7TeV-powheg-tauola/jslee-v2-Fall11_Tbar_t-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /Tbar_TuneZ2_s-channel_7TeV-powheg-tauola/jslee-v2-Fall11_Tbar_s-channel-f99e9bb67aff534e9b6be7177a9a6dd1/USER /DoubleMu/jslee-v1-Fall11_DoubleMu_Run2011A_05Aug2011_v1-964e7d21029af38f9c00329957b4d353/USER /DoubleMu/jslee-v1-Fall11_DoubleMu_Run2011A_May10ReReco_v1-d31f607963c7fe80e3344181c12a0e60/USER /DoubleMu/jslee-v1-Fall11_DoubleMu_Run2011A_PromptReco_v4-964e7d21029af38f9c00329957b4d353/USER /DoubleMu/jslee-v1-Fall11_DoubleMu_Run2011A_PromptReco_v6-037418361e29e96631af775307e2c915/USER /DoubleMu/jslee-v1-Fall11_DoubleMu_Run2011B_PromptReco_v1-037418361e29e96631af775307e2c915/USER /DoubleElectron/jslee-v1-Fall11_DoubleElectron_Run2011A_05Aug2011_v1-7d72a8e72006e808591999f6bafa3866/USER /DoubleElectron/jslee-v1-Fall11_DoubleElectron_Run2011A_May10ReReco_v1-3b82207fc35d51fff8d7425676ffcb81/USER /DoubleElectron/jslee-v1-Fall11_DoubleElectron_Run2011A_PromptReco_v4-5985f686a9776bffdb56ca6460a22c2f/USER /DoubleElectron/jslee-v1-Fall11_DoubleElectron_Run2011A_PromptReco_v6-15a0cdac6fbf3d95ed3e755903591ee3/USER /DoubleElectron/jslee-v1-Fall11_DoubleElectron_Run2011B_PromptReco_v1-15a0cdac6fbf3d95ed3e755903591ee3/USER /MuEG/seungen-v1-Fall11_MuEG_Run2011A_May10ReReco_v1-60bef32a1967e0b919dbf9da747a1044/USER /MuEG/seungen-v1-Fall11_MuEG_Run2011A_PromptReco_v4-4545b3facad91df4dfb06138bbc7587c/USER /MuEG/seungen-v1-Fall11_MuEG_Run2011A_PromptReco_v6-c8990932f52e017973bc54739a51f06e/USER /MuEG/seungen-v1-Fall11_MuEG_Run2011A_05Aug2011_v1-1aab3f74f26f9522ea3482d1757b6789/USER /MuEG/seungen-v1-Fall11_MuEG_Run2011B_PromptReco_v1-c8990932f52e017973bc54739a51f06e/USER

  3. HLT & skim efficiency HLT eff = Nhlt/Ngen, Skim eff = Nskim/Nhlt

  4. HLT & skim efficiency HLT eff = Nhlt/Ngen, Skim eff = Nskim/Nhlt

  5. Lepton & event selection • Electron selection pT>10 GeV, |η|<2.5, |d0|<0.02, sip<4, nchi2<10, charge consistent, eidLoose • Muon selection pT>10 GeV, |η|<2.4, global muon, good muon, nchi2<10, hits_val>20, nstation>=1 • Preselection : nlep+>=2, nlep->=2 • Event selection - mass dependent cut m4 cut : |mp – mn|/(mp + mn) > cut value di-lepton pt cut : Max(pT(H++),pT(H--),pT(Z1),pT(Z2)) > cut value

  6. m4 for event selection nlep+>=2, nlep->=2 expected # of event expected # of event expected # of event H++H--to eμeμ (130GeV) H++H-- to μμμμ (130GeV) H++H–to eeee (130GeV) GeV GeV GeV expected # of event expected # of event expected # of event H++H--to eμeμ (130GeV) H++H-- to μμμμ (200GeV) H++H-- to eeee (200GeV) GeV GeV GeV

  7. dilptfor event selection nlep+>=2, nlep->=2, m4 expected # of event expected # of event expected # of event H++H-- to μμμμ (130GeV) H++H--to eμeμ (130GeV) H++H–to eeee (130GeV) GeV GeV GeV expected # of event expected # of event expected # of event H++H--to eμeμ (200GeV) H++H-- to μμμμ (200GeV) H++H-- to eeee (200GeV) GeV GeV GeV

  8. Mass of H++ nlep+>=2, nlep->=2 expected # of event expected # of event expected # of event H++H--to eμeμ (130GeV) H++H-- to μμμμ (130GeV) H++H–to eeee (130GeV) GeV GeV GeV expected # of event expected # of event expected # of event H++H--to eμeμ (200GeV) H++H-- to μμμμ (200GeV) H++H-- to eeee (200GeV) GeV GeV GeV GeV GeV GeV

  9. Mass of H++ nlep+>=2, nlep->=2, m4 expected # of event expected # of event expected # of event H++H--to eμeμ (130GeV) H++H-- to μμμμ (130GeV) H++H–to eeee (130GeV) GeV GeV GeV expected # of event expected # of event expected # of event H++H--to eμeμ (200GeV) H++H-- to μμμμ (200GeV) H++H-- to eeee (200GeV) GeV GeV GeV GeV GeV GeV

  10. Exclusion limit nlep+>=2, nlep->=2, m4, dilpt eeee Expected Limit : 348 GeV Observed Limit : 349 GeV mmmm Expected Limit : 379 GeV Observed Limit : 380 GeV emem Expected Limit : 360 GeV Observed Limit : 362 GeV

  11. Weekly plan • Delta-beta correction for particle flow isolation

  12. backup

  13. Mario’s result with Fall11 Combined Limit : 459 GeV // Limit for pair production only 392 GeV

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