MC ’04-’05 objectives                                                       

MC ’04-’05 production test proposal Get the ball rolling! Platform for testing items nominally done or near completion Additional items to inserted in a second production test Features: 100 pb–1 of 2004-2005 all_phys card at LSF = 0.2 Standard scripts and offline machinery Results written to tape library MCDST's produced. Delete files after study to make way for 2nd test or real production Timescale: 01-Sep-05 Built-in realism regarding August: treat this as firm deadline

Items for production test: Summary Status New IR geometry Ready EmC energy response ? EmC timing resolution adjustments Work New cluster efficiency parameters Nuclear interactions/regeneration New secondary decay generators LSB (background) insertion SQZ (compession) fix Cell/cluster index fix

MC work 1/9: Geometry and IR Simulation of new IR Geometry added to MC, new card IRTY added (CB) Status: Ready for production test New card to specify beam-crossing angle Add BCAN card (TS) to GEANFI Official production: Angle calculated from HepDB values Private production: No way to specify (fixed at 0.0125 rad) Status: Not necessary for production test Good idea to add ASAP for individual users

MC work 2/9: EmC energy response Attenuation lengths in endcap modules Short/central modules have different attenuation lengths; these were reversed in MC Status: Simulation fixed (CB), ready for production test Calorimeter energy scale calibration: Disable extra y-dependent attenuation factor for endcaps in CLUADJUST module Need further studies: y-dependence of endcap response, overall energy scale Status: Futher work requires following items: Fix attenutation lengths, extra factor in CLUADJUST SQZ fixed so MCEL cluster energies can be re-read Can results of a production test be used for further tuning?

MC work 3/9: EmC clusters EmC time resolution Common smearing in simulation (140 ps) zeroed (CB, done) Add common smearing at T0_SMEAR level (MM) Add cluster smearing in EMCSIMUADJ or other module (MM) Status: Above items need to be completed. Testing requires a few pb–1 f  p+p-p0 (CG) Can be done with output from production test? Cluster efficiency New parameters for cluster efficiency curves to be put into EMCSIMUADJ and tested (MP, TS) Status: Parameters exist, need to be inserted Would be nice to have for production test

MC work 4/9: Generators f  p+p-p0 generator FN has a new generator that uses the matrix-element approach. GEANFI interface not yet done, critical for testing. Need to add sQED FSR amplitudes. Status: Needs work, probably not needed for first production test Secondary generators KS  p+p-e+e- generator (CG) added (CB) with BR = 4.7 × 10–5 p0  e+e- decay generator added with BR = 6 × 10–6 (CB) p  en decay generator added with BR = 1.23 × 10–4 (CB) Status: Above items can be looked at in production test Probably require dedicated testing as well KS  p0e+e- generator (FB, VP) still needs to be interfaced

MC work 5/9: Nuclear interactions GEANFI nuclear interactions/regeneration code Original CASK0 code restored as CASK0C, except that regeneration is disabled (CB) CASK0B is called for interactions in calorimeter CASK0C is called elsewhere (e.g., DC walls and beam pipe, where regeneration is handled separately) Status: Testing requires several 10's of pb–1 Can probably be handled in production test Do we plan any work for charged kaons?

MC work 6/9: Trigger Comprehensive data-quality control for trigger Done up to run 36904 (MP, BS) Bad runs flagged and/or reconstructed files deleted (MM, BS) Other work on trigger Simulation of time smearing in high-jitter/bad RF period Adjustment of DC threshold simulation DISH maps Status: Nice to incorporate any/all of above in production test.

MC work 7/9: DC response DC tracking resolution: s-t relations Various volunteers: AA, PDS, MM, TS Status: No work on solution underway yet DC tracking resolution: multiple scattering off DC wires SK interested in working on this problem Status: Studies beginning, will not condition production test Correlated noise in DC for charged kaons Volunteers: EDL, PDS + charged kaon group Simulation of dE/dx response Status: VP has A_C module ready, can incorporate in test?

MC work 8/9: Background LSB insertion code Code exists, tested standalone (MM) Work on scripting to be done (MM) Status: Necessary for production test Fixes to CELE structure Need to add a new field to CELE structure with original CELE index into bank. Need to modify FILLCSPSMC_CEKA to use this index (MM) Status: Necessary for production test

MC work 9/9: Technical issues SQZ library Packing parameters different in GEANFI and KBK modules Certain MC truth values wrongly scaled or offset on re-reading MCEL energies (scale ×5) Particle TOF (e.g., K+) (offset +100 ns) Unclear why a problem (packing parameters stored in I-banks) Workaround module FIXIS exists (MM) Status: Necessary for production test

Items for production test: Reprise Status New IR geometry Ready EmC energy response ? EmC timing resolution adjustments Work New cluster efficiency parameters Nuclear interactions/regeneration New secondary decay generators LSB (background) insertion SQZ (compession) fix Cell/cluster index fix