reminder: why reprocess?
DESCRIPTION
Reminder: Why reprocess?. 2001-2002 data Reconstruction: DBV 12-14 DSTs: DBV 14-16 2004 data DBV-19 for reconstruction & DSTs, Run < 31690 DBV-20 for Run > 31690. What is gained by reprocessing? What complications arise? Analysis/MC compatibility, etc. What needs to be done to start?. - PowerPoint PPT PresentationTRANSCRIPT
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Reminder: Why reprocess?2001-2002 data
Reconstruction: DBV 12-14DSTs: DBV 14-16
2004 dataDBV-19 for reconstruction & DSTs, Run < 31690DBV-20 for Run > 31690
• What is gained by reprocessing?
• What complications arise?Analysis/MC compatibility, etc.
• What needs to be done to start?
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Datarec changes DBV-14 19dE/dx code for all streams (2002 data)DEID bank
FILFO bias sampleNo BHABREJ cut in FILFODownscaled golden Bhabha sample
Many bha files deleted from tape library
kpm stream - old algorithms eliminated, new dE/dx algorithmksl stream - new KSTAGrad stream - min bias sampleclb stream - bug fixes
Bug fixed in dE/dx integration in VTXFIN (DBV-16)Mainly affects kpm stream: 2907 dkc DSTs < DBV-16
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DBV-19 20 and beyond
DBV-19 20: s, boost values from HepDB BMOM(3) for all EvCl routines
• Technical points that don’t impact reconstruction quality
Also true for DBV-14 19 lists: not included
Further changes for DBV-21:
• Problems with dead-wire lists
• Thickness of DC wall 75 µm
• Cut DC hits with drift times > 2.5 µs
• Modifications to streaming code
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More reprocessing issues
MC compatibility:Does reprocessing with a new version of datarec imply
re-reconstructing MC files?reprocessing MC DSTs?
Scripting:Need work on scripting to reprocess on batch queues
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MC re-reconstruction?
MC re-reconstruction possibleMinor work on scripting needed
Impact of dead-wire lists:
Re-reconstruction of much/all 2001-2002 MCDead wires not masked for data reconstruction
Re-reconstruction of much/all 2004 dataDead wires masked in 2004 data reconstruction
No issue concerning MC compatibility in this case
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MC development: Minor topics
BP geometry for 2004
generator
LSB insertion code
CSPS/CELE element correspondence (?)
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MC development: Major topics1. Accidental cluster rates (SM)
2 weeks for module to delete excess clusters6 weeks to reprocess MC DSTs if needed
2. Correlated noise in DC for charged kaon tracks (PDS) Problem and solutions under study
3. Regeneration/nuclear interactions (MA, GL)Problem and solutions under study
4. Energy scale calibration for EmC simulation (PG) Problem and solutions under study
5. DC tracking resolution (MM) 2 months to reparameterize errors and study resolutionNeed significant input for P. de Simone
6. EmC time distribution (CG) Report this meeting