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Time of Flight Analysis

Time of Flight Analysis. Progress on TOF Software Frank Geurts for the TOF group. outline. detectors & data sets online software offline software: TOF in StEvent calibration status embedding status. y. x. East-TPC. TOFp. TOFr. TPC. pVPD west. pVPD east. TOFx. Au. d.

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Time of Flight Analysis

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  1. Time of Flight Analysis Progress on TOF Software Frank Geurts for the TOF group

  2. outline • detectors & data sets • online software • offline software: TOF in StEvent • calibration status • embedding status F. Geurts -- Time-Of-Flight Analysis

  3. y x East-TPC TOFp TOFr TPC pVPD west pVPD east TOFx Au d TOF detectors & data sets where, when & what ... F. Geurts -- Time-Of-Flight Analysis

  4. TOF online software • in STAR online CVS -- tagged & bagged • TOFY01 • TOFpDAQ v1 for pVPD+TOFp • localmon for TOFpDAQ v1 • HVSys monitoring software • TOFY02 • TOFpDAQ v2 for pVPD+TOFp+TOFr • localmon for v2 • HVSys (unmodified) • TOFr HV • TOFr GasMon • usage: cvs co –r TOFY02 online/tof F. Geurts -- Time-Of-Flight Analysis

  5. TOF offline software • lots of code development for geometry, matching, calibration, etc. • move to the public domain, i.e. include in STAR production • provide ToF PID in StTrackPidTraits and in STAR μDST • move calibration tables into STAR dBase • set up embedding scheme F. Geurts -- Time-Of-Flight Analysis

  6. DAQ StEvent tofCollection tofData TOF DAQ reader tofCell tofSlat trackNodes tofHit TOF Maker TOFp Match Maker TOF Ntuple Maker TOFr Match Maker TOF Match Ntuple TOF in StEvent F. Geurts -- Time-Of-Flight Analysis

  7. two tracks crossing one slat one track crossing two slats both: recent modifications/additions track matching: • introduced StTofpMatchMaker • based on StTofAnalysisMaker • already used for pVPD and TOFp calibrations • introduction of StTofrMatchMaker • new approach for TOFr geometry • based on the GEANT description • required ROOT update • review & CVS pending some final tests • changes to StEvent::tofCollection() • modified StTofSlat and StTofHit • added StTofCell • TOF analysis tools in StTofPool • StTofpNtupleMaker F. Geurts -- Time-Of-Flight Analysis

  8. StEvent tofCollection tofData tofCell tofSlat trackNodes pvpd tofHit pVPD Calibrator TOF Calibrator near future additions • TofCalibrator • calibrates TOFp slat and TOFr cell data • stores results in tofHit • TOF PID traits • essentially identical to StTofHit • μDST • pVPD info available in μDST (1-13 words/evt) • TOF Hit Data in μDST tracks F. Geurts -- Time-Of-Flight Analysis

  9. TOF calibrations TOFp AuAu TOFr dAu Llope Ruan TOFp dAu Llope F. Geurts -- Time-Of-Flight Analysis

  10. TOF calibrations based on private match ntuples pVPD finished for AuAu partially finished in dAu and pp (run 3) for TOFrTrg’ed events various event classes (from different degrees of coincidence) impact on calibration wide range of start timing resolutions in dAu work in progress for all event classes and dAu triggers see Bill Llope’s talk in spectra PWG on Friday TOFp finished for AuAu work in progress dAu TOFp calibr. macros ported to C++ objects for inclusion in STAR makers work done by Siva Nagisetty, Rice TOFr partially finished for dAu TOFrTrg data sample producing physics: see Lijuan Ruan’s talk tomorrow code and tables need to be ported to STAR production environment alternative calibration underway pending new TOFrMatchMaker TOF calibration status start and total time resolutions in ps *) TOFr PRL analysis F. Geurts -- Time-Of-Flight Analysis

  11. calibration: near future • StTofCalibrator • ToF info for TPC tracks • migration of calibration tables into STAR dBase • calibration scheme for upcoming run • FastOffline: matchMakers • quick update of STAR dBase • detailed calibration based on μDSTs F. Geurts -- Time-Of-Flight Analysis

  12. TPC embedding DAQ vertex multp. TPC mixer tof maker sim TPC reco geant.root event.root doEvents TOF embedding TOF simulator TOF mixer TPC association TOF match TOF association TOF embedding status • embed TOF hits after TPC embedding • similar to EMC embedding (Alex S.) • keep TOF geant data in geant.root • update StMcEvent • introduce: McTofHitCollection, McTofHit • change: StMcEvent, StMcTrack and StMcEventMaker • committing to STAR CVS • 1k proton test sample • thanks to Eric • TOF Mixer Maker • pending last tests • ready to be committed • TOF association maker • waiting for McEvent updates • under construction F. Geurts -- Time-Of-Flight Analysis

  13. online software in STAR repository TOF in STAR production move private code to public domain new Makers many updates to StEvent Calibrations AuAu pVPD & TOFp ready dAu pVPD & TOFr for TOFrTrg preliminary pVPD & TOFp calibration for full data set pp pVPD & TOFr for TOFrTrg TOF embedding EMC-based embedding scheme many updates in StMcEvent TOFp/r MixerMaker ready test data available TOF PID in StEvent and μDST TOF PID traits for TPC tracks Calibration pVPD/TOF calibration tables into STAR dBase pVPD Calibrator and TOF Calibrators fill StTofHit upcoming run: calibration in Fast Offline TOF embedding finish work on TOF Associator request TPC embedding with special TOFp/TOFr tracks GEANT geometry maintenance Summary & Outlook F. Geurts -- Time-Of-Flight Analysis

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