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Diffractive MC for the F L analysis. Valentina Sola. RAPGAP MC. New sample of RAPGAP from Num07t2.0 FUNNEL version: pomeron exchange only (http://www-zeus.desy.de/~vsola/ZEUS_ONLY/FLD/rapgap/funnel/fw/rapgapIP.txt) reggeon excange only
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Diffractive MCfor the FL analysis Valentina Sola
RAPGAP MC New sample of RAPGAP from Num07t2.0 FUNNEL version: pomeron exchange only (http://www-zeus.desy.de/~vsola/ZEUS_ONLY/FLD/rapgap/funnel/fw/rapgapIP.txt) reggeon excange only (http://www-zeus.desy.de/~vsola/ZEUS_ONLY/FLD/rapgap/funnel/fw/rapgapIP.txt) Kinematic region of the new sample: 4 < Q2 < 200 GeV2 0.03 < y < 0.98 σIP = 26.263 nb → LIP = 38.076 pb-1 for 1M of events σIR = 9.229 nb → LIR = 108.352 pb-1 for 1M of events FL Rewiew - 29/04/2008
Agreement between DATA & RAPGAP (Have a look to the November '07 Diffractive Monthly Meeting or see Backup) DIS variavles: difference in normalization Diffractive variables: difference in shape and normalization Need to understand RAPGAP IR normalization DD Monte Carlo is still missing Work ongoing to understand difference between DATA and RAPGAP FL Rewiew - 29/04/2008
Backup FL Rewiew - 29/04/2008
Rapgap Check (ηMAX selection) - I ― old = Num03t3.1 / “offline” trigger ―new = Num07t1.0 / SPP15-16 Q2e xe FL Rewiew - 29/04/2008
Rapgap Check (ηMAX selection) - II ― old = Num03t3.1 / “offline” trigger ―new = Num07t1.0 / SPP15-16 ye Ee’ FL Rewiew - 29/04/2008
Rapgap Check (ηMAX selection) - III ― old = Num03t3.1 / “offline” trigger ―new = Num07t1.0 / SPP15-16 MX xIP FL Rewiew - 29/04/2008
Rapgap Check (ηMAX selection) - IV ― old = Num03t3.1 / “offline” trigger ―new = Num07t1.0 / SPP15-16 β W FL Rewiew - 29/04/2008
ηMAX Distribution → Loss of MC in the diffractive region DD in MC still missing → MC peak shifted with respect to DATA FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - I xEL Q2EL yEL Ee (MC = DJANGOH + PYTHIA + RAPGAP IP from Num03t3.1) DD Monte Carlo missing FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - II xIP MX β W Difference between DATA and MC DATA = 102530 / MC = 75140 → 27% less than DATA FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - I xEL Q2EL yEL Ee (MC = RAPGAP IP + RAPGAP IR from Num07t1.0) DD Monte Carlo missing FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - II xEL Q2EL yEL Ee (MC = RAPGAP IP + RAPGAP IR from Num07t1.0) DD Monte Carlo missing FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - III xIP Mx β W (MC = RAPGAP IP + RAPGAP IR from Num07t1.0) DD Monte Carlo missing FL Rewiew - 29/04/2008
Control Plots for ηMAX < 2.2 - IV xIP Mx β W (MC = RAPGAP IP + RAPGAP IR from Num07t1.0) DD Monte Carlo missing FL Rewiew - 29/04/2008
Kinematic Coverage of DATA (ηMAX > 2.2) Q2 vs xIP Q2 vs β Q2 vs y β vs xIP LDATA = 41.5 pb-1 FL Rewiew - 29/04/2008
Kinematic Coverage of RAPGAP IP (ηMAX > 2.2) Q2 vs xIP Q2 vs β Q2 vs y β vs xIP LRAPGAP IP = 37.3 pb-1 FL Rewiew - 29/04/2008
Kinematic Coverage of RAPGAP IR (ηMAX > 2.2) Q2 vs xIP Q2 vs β CAMBIARE Q2 vs y β vs xIP LRAPGAP IR = 66.5 pb-1 FL Rewiew - 29/04/2008