MC ’04-’05 objectives

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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-05Built-in realism regarding August: treat this as firm deadline

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Items for production test: Summary

Item Status

New IR geometry Ready

EmC energy response ?

EmC timing resolution adjustments Work

New cluster efficiency parameters Work

Nuclear interactions/regeneration Ready

New secondary decay generators Ready

LSB (background) insertion Work

SQZ (compession) fix Work

Cell/cluster index fix Work

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MC work 1/9: Geometry and IR

Simulation of new IRGeometry 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 GEANFIOfficial production: Angle calculated from HepDB valuesPrivate production: No way to specify (fixed at 0.0125 rad)Status: Not necessary for production test

Good idea to add ASAP for individual users

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MC work 2/9: EmC energy response

Attenuation lengths in endcap modulesShort/central modules have different attenuation lengths; these were reversed in MCStatus: Simulation fixed (CB), ready for production test

Calorimeter energy scale calibration: Disable extra y-dependent attenuation factor for endcaps in CLUADJUST moduleNeed 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?

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MC work 3/9: EmC clusters

EmC time resolutionCommon 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 (CG)Can be done with output from production test?

Cluster efficiencyNew 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

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MC work 4/9: Generators

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 generatorsKS ee generator (CG) added (CB) with BR = 4.7 × 10–5

ee decay generator added with BR = 6 × 10–6 (CB) e 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 wellKS ee generator (FB, VP) still needs to be interfaced

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MC work 5/9: Nuclear interactions

GEANFI nuclear interactions/regeneration codeOriginal 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?

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MC work 6/9: Trigger

Comprehensive data-quality control for triggerDone 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.

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MC work 7/9: DC response

DC tracking resolution: s-t relationsVarious 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 problemStatus: Studies beginning, will not condition production test

Correlated noise in DC for charged kaons Volunteers: EDL, PDS + charged kaon group Status: No work on solution underway yet

Simulation of dE/dx responseStatus: VP has A_C module ready, can incorporate in test?

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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

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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

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Items for production test: Reprise

Item Status

New IR geometry Ready

EmC energy response ?

EmC timing resolution adjustments Work

New cluster efficiency parameters Work

Nuclear interactions/regeneration Ready

New secondary decay generators Ready

LSB (background) insertion Work

SQZ (compession) fix Work

Cell/cluster index fix Work