CURRENT STATUS OF WORK FOR MC PRODUCTION 04-Apr-03 ======================================================= Trigger simulation M. Palutan, B. Sciascia Done EmC geometry S. Miscetti, C. Bloise Implemented in MC Error in DB for reconstruction fixed, reinserted C. Bini reports problems-- no hits in quadrants of endcaps (see DC geometry) EmC response module S. Miscetti, T. Spadaro, C. Bini Needs routine for att. len. simulation in endcaps Needs to preserve CHIT Needs testing EmC response survey T. Spadaro For thresholds at cell level in EMCSIMUADJ: Study efficiency, energy res. time res. slewing, energy linearity at cluster level Studies of MC vs. data done with rho-pi MC (#332), geanfi 170, DBV-14 MC has higher E-plateau efficiency than data Stochastic effects: MC E-res 10% better than for data, dominated by sampling fraction MC T-res 10% better than for data, dominated by p.e. statistics MC has 20% more p.e. than data Constant effects: MC has sig_E = sig_T = approx. 0 Data has sig_T = approx. 140 ps. Slewing: data and MC in rough agreement Shower profile (X_0) some difference between data and MC In progress: Next week handoff to S. Miscetti, C. Gatti Can we explore variable number of p.e. in MC? Birk's effect? DC geometry A. Antonelli, S. Dell'Agnello Problem with disappearing calorimeter hits appears to be a problem with placement of chamber legs OK when any three of four chamber legs present ONLY/MANY volume conflict? Debugging DC wire sag map S. Dell'Agnello, A. Antonelli, C. Forti Map exists, in GEANFI, not in reconstruction, OK Map is almost certainly definitive Some indication of troubles from A. Denig, D. Leone in pi+ pi- gamma events Simone will look at Bhabhas for these runs (~22000), and at Bhabhas from early 2001/late 2002 to see if there is a time dependent effect Possible that Achim et al. have a bad version of GEANFI, which is very much in flux? DC s-t relations P. De Simone Done, but will have to be re-done if a problem with sags DCDBINI modification ready DC dead/hot & efficiencies M. Moulson Done Energy loss in DC A. Antonelli E-loss variable in DHIT now calculated GEANT makes 30 cm tracking steps Patera code makes smaller steps, E-loss evaluated in these steps to write DHIT E-loss values The sum of E-loss in small steps not constrained to equal GEANT E-loss, but not expected to matter Energy loss straggling of K+/- S. Bulychev Seems not to be taken into account in BP Which model of energy loss do we use in MC (Gaussian -> Landau) Are we sure that this is not a reconstruction effect? Background selection M. Moulson, S. Miscetti All 2001 histograms produced (170 pb-1) 56 pb-1 of bgg files produced since evening of 31/3 Background insertion M. Moulson, S. Miscetti Comprehensively tested, lots of last minute revisions raw2dtce and raw2cele remove background if inserted Done Beam position and momentum M. Moulson, S. Dell'Agnello About 2 pb-1 of 2001 runs with bad DAQ, trigger configurations, bad EmC calibs deleted, cleaned from DB2 2001: 138 runs, 6.5 pb-1, of which 48 have statistics too low to obtain values Probably discard, but this should be registered somewhere 76 have large spreads in one of Px, Py, Pz Increase tolerance of this value, or discard affected runs Decision at meeting: purge ALL affected runs (138) 2002: 178 runs from 2002, 25.5 pb-1 Reassess situation after BVLAB results available from SELBKG histgramming jobs Beam energy spread C. Gatti, T. Spadaro Three values to be used, hard coded by run range Two values (280, 320) for 2002, 1 value (300) for 2001 Generator phi/ISR M. Antonelli Checking problems with relative phi BR's Radiative photon indicated in KINE user word (intermediate states, rho, omega, eta, eta' also indicated here) Generator omega -> pi0 gamma P. Gauzzi Done and tested, interfaced with geanfi? Generator a0/f0 gamma P. Gauzzi KLOE spectra added MeV/GeV bug, square-root fixed Testing still in progress Generator K0 -> pi+pi-gamma T. Spadaro, C. Gatti, M. Antonelli IB simulation complete, tested Interfaced with GEANT? Generator KL3g C. Gatti, M. Antonelli, T. Spadaro More or less know theoretical approach No code yet written Generator KL3g F. Scuri Tested, 30 MeV cutoff, needs adjustment if we use? Regeneration A. Ferrari All working except treatment of nuclear recoil? Generators for K -> 3 pi C. Bloise Dalitz plot maxima fixed, done Generator eta -> pi +pi- pi0 F. Ambrosino Being installed BABAYAGA F. Nguyen, C. Bloise Axes reversed, kinematic bug fixed, done for now DB modifications I. Sfiligoi Done until we discover something missing Something may be missing: ability to write MC DST's based on more than one MC run number Scripting for MC production M. Moulson Not much progress this week but almost ready Bank-reduction code for DST's M. Moulson Done Streaming code for DST's C. Bloise MC-truth based event filter under testing Scripting for DST production M. Moulson, C. Bloise My estimate: > 1 week