SUSY DILEPTON TRIGGER MONITORING M.Rossi (Udine University) July 19, 2004 Multilepton Meeting

RUNS 938 RUNS, 220 pb-1 ONLINE bits required to be good: CLC,L1T,L2T,L3T,CAL,COT,CMU,CMP,CMX,SMX OFFLINE bits required to be good: COT,CAL,CMU,CMP,CMX RUN < 179056, when COT problems started (February 13, 2004) 938 RUNS, 220 pb-1 July 19, 2004 Multilepton Meeting

NOW CONSIDERING RUNS TRIGGER PATHS 782 runs, 140 pb-1 Time range: 2002.03 – 2004.02 Trigger table range: PHYSICS_1_01_v1 / PHYSICS_2_01_v4 TRIGGER PATHS CEM4_CEM4 (DIELECTRON_CENTRAL_4) CEM4_CMUP4 CEM4_CMX4 CMUP4_CMUP4 CMUP4_CMX4 July 19, 2004 Multilepton Meeting

MONITORING VARIABLES R  events collected by the trigger path having one of the corresponding reconstructed lepton (per trigger path: R11st lepton, R22nd lepton) Q  events, that have two reconstructed leptons, not collected by the corresponding trigger path Rate  events collected by trigger path over the luminosity of the run July 19, 2004 Multilepton Meeting

CEM4_CMUP4 run run 168000-168086 144628-150799 run 163113-163136 run 167824-167847 July 19, 2004 Multilepton Meeting

CEM4_CMX4 run 152942-152953 July 19, 2004 Multilepton Meeting

CEM4_CEM4 July 19, 2004 Multilepton Meeting

CMUP4_CMX4 July 19, 2004 Multilepton Meeting

CMUP4_CMUP4 July 19, 2004 Multilepton Meeting

all Q distributions becomes STEP run 168000-168086 PHYSICS_1_05_v7 VS PHYSICS_1_05_v8 New SUSY Dilepton paths to use 4 GeV CMU rather than restricting to CMUP Lower CEM to 4 GeV to match other SUSY paths New SUSY Dilepton backup paths all Q distributions becomes less stable July 19, 2004 Multilepton Meeting

big step in rate distributions STEP run 144628-150799 PHYSICS_1_01_v7 VS PHYSICS_1_02_v3 Tighter CMX extrapolation (new version of L1 trigger for all CMX paths) Cut on CES in L2 big step in rate distributions for CEM paths July 19, 2004 Multilepton Meeting

all rate distributions STEP run 167824-167847 PHYSICS_1_05_v6 VS PHYSICS_1_05_v7 Add COT and Silicon data compression to reconstruction trigger in Level 3 for good Add MONITOR_DAQ_ERROR_v1 to find problems like BC miss match using new filter all rate distributions becomes less stable July 19, 2004 Multilepton Meeting

step in R distributions STEP run 163113-163136 PHYSICS_1_04_v9 VS PHYSICS_1_05_v1 Nearly all electron and photon L3 triggers tightened sinθ from track for electrons New EM filter in 4.8.4 as 3-tower had/em step in R distributions for CEM paths July 19, 2004 Multilepton Meeting

step in R and rate distribution STEP run 152942-152953 PHYSICS_1_02_v7 VS PHYSICS_1_03_v1 Add scintillator CSX to all CMX L1 triggers step in R and rate distribution for CEM4_CMX4 path July 19, 2004 Multilepton Meeting

Summary R: locally flat distribution that reflects changes in the trigger table  locally stable trigger behaviuor NEXT 782 runs considered  complete 938 runs July 19, 2004 Multilepton Meeting

BACKUP DOWNSTREAM APPROACH For each TRIGGER PATH (T.P.) count: N : # evts selected by the T.P. N1: # evts with offline lepton 1 N2: # evts with offline lepton 2 In ideal conditions R=1 (R~purity) For each lepton “type”, expect R values from different T.P. comparable and stable in time R1 ≡ N1/N and R2 ≡ N2/N July 19, 2004 Multilepton Meeting

BACKUP UPSTREAM APPROACH N12 ≡ events with lepton 1 && lepton 2 reconstructed offline level N0 ≡ events failing the i-th T.P. Qi ≡ N0/NAB In ideal conditions Qi = 0 July 19, 2004 Multilepton Meeting