Trigger Performance Validation Study of L 1 Trigger

Trigger Performance Validation Study of L 1 Trigger and HLT for Heavy Flavour group Devdatta Majumder Gobinda Majumder India-CMS meeting 27 -28 Sep 2007

Trigger for Heavy Flavour Group • For signal – Inclusive B-production – Quarkonium Studies – Bs →J/yf, Bc →J/yp, B+→J/y. K, B → J/y. X – Bs →mm(g) – Bs →fmm, B → K(*) mm – X(3872), ηb, di-charm baryon – B, C, S PDFs, tudies of Bs mixing, same-signed dimuon charge asymmetry, CP violation – …… • For Calibration/Understanding of background/efficiencies – Bd →J/y. K(*) – J/y→mm At present : Validate all trigger informations for the above mentioned MC samples Coming : Setup algorithms to study these performances in real data, e. g. use J/y triggered events for single muon trigger study.

Outline Need to study too many numbers, but not easy to show in slide. Channel studied : J/y →mm, J/y →ee, B →J/y (→mm) K(*) Plots of • • L 1 Trigger : bit-wise informaiton Correlation among L 1 trigger bits HLT : bit-wise informaiton Correlation among HLT trigger bits Correlation among L 1 and HLT trigger bits Trigger efficiencies as a function of Pt of J/y Trigger efficiencies as a function of h of J/y

L 1 Trigger informations B →J/y K* J/y →mm J/y →ee • Check all these numbers, is it acceptable/reasonable ? • Check these numbers for all new version of CMSSW (both in data and MC)

Correlations of L 1 Trigger bits B →J/y K* J/y →mm • Use correlations to setup algorithms and study trigger efficiencies

HLT informations B →J/y K* J/y →mm J/y →ee Same arguments as it was for L 1 • • Check all these numbers, is it acceptable/reasonable ? Check these numbers for all new version of CMSSW (both in data and MC)

Correlations of HLT bits B →J/y K* J/y →mm • Use correlations to setup algorithms and study trigger efficiencies

Correlations of L 1 and HLT bits B →J/y K* J/y →mm • Many trigger bits are not have any importance in B-physics group analysis • May be we pin down few channels and study those only

0 Single. Mu 3 1 Single. Mu 5 2 Single. Mu 7 3 Single. Mu 10 4 Single. Mu 14 5 Single. Mu 20 6 Single. Mu 25 48 Double. Mu 3 60 Mu 3_Iso. EG 5 61 Mu 5_Iso. EG 10 62 Mu 3_EG 12 63 Mu 3_Jet 15 64 Mu 5_Jet 15 65 Mu 3_Jet 70 66 Mu 5_Jet 20 67 Mu 5_Tau. Jet 20 68 Mu 5_Tau. Jet 30 81 Mu 3_HTT 200 86 Mu 3_ETM 30 94 Triple. Mu 3 99 Double. Mu 3_Iso. EG 5 100 Double. Mu 3_EG 10 101 Double. Iso. EG 5_Mu 3 102 Double. EG 10_Mu 3 103 Double. Mu 3_HTT 200 108 Double. Mu 3_ETM 20 List of trigger bits related to muon 46 HLT 1 Muon. Iso 47 HLT 1 Muon. Non. Iso 48 Cand. HLT 2 Muon. Iso 49 HLT 2 Muon. Non. Iso 50 HLT 2 Muon. JPsi 51 HLT 2 Muon. Upsilon 52 HLT 2 Muon. Z 53 HLTNMuon. Non. Iso 54 HLT 2 Muon. Same. Sign 55 Cand. HLT 1 Muon. Prescale. Pt 3 56 Cand. HLT 1 Muon. Prescale. Pt 5 57 Cand. HLT 1 Muon. Prescale. Pt 7 x 7 58 Cand. HLT 1 Muon. Prescale. Pt 7 x 10 59 Cand. HLT 1 Muon. Level 1 65 HLTB 1 Jet. Mu 66 HLTB 2 Jet. Mu 67 HLTB 3 Jet. Mu 68 HLTB 4 Jet. Mu 69 HLTBHTMu 70 HLTBJPsi. Mu 75 HLTXMuon. BJet 76 HLTXMuon. BJet. Soft. Muon 81 HLTXMuon. Jets 82 HLTXElectron. Muon 83 HLTXElectron. Muon. Relaxed 85 HLTXMuon. Tau

Correlations of Selected L 1 and HLT bits B →J/y K* J/y →mm

L 1 Trigger eff as a function of PT of J/y : J/y→mm Total evt * Combined eff * Something is wrong in Single. Mu 5 trigger criteria (or understanding)

L 1 Trigger eff as a function of |h| of J/y : J/y→mm Total evt Combined eff

HLT efficiencies as a function of PT of J/y : J/y→mm Total evt Combined eff

HLT efficiencies as a function of |h| of J/y : J/y→mm Total evt Combined eff

Summary • • Started this only in last month Tried to see the trigger efficiencies and correlation between them Validate in different MC sample Setup algorithm to calculate efficiency for each channel in real data, which is a real challenge for us

L 1 Trigger eff as a function of PT of J/y : B →J/y K* Total evt Combined eff

HLT efficiencies as a function of PT of J/y : B →J/y K* Total evt Combined eff

L 1 Trigger eff as a function of |h| of J/y : B →J/y K* Total evt Combined eff

HLT efficiencies as a function of |h| of J/y : B →J/y K* Total evt Combined eff