1 / 11

Current Status of StHbtMaker

Current Status of StHbtMaker. status/progress HBT m DST structure example work discussion. Maker chain. StEventMaker. StHbtEventReader. StHbtManager. StHbtMaker. StHbtAnalysisCollection. Event Cut. StHbtAnalysis. Event- Mixing Buffer. Particle 1 Cut. Particle 2 Cut. Pair Cut.

diane
Download Presentation

Current Status of StHbtMaker

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Current Status of StHbtMaker status/progress HBT mDST structure example work discussion malisa - STAR HBT PWG meeting - 01Aug99

  2. . . . Maker chain StEventMaker StHbtEventReader StHbtManager StHbtMaker StHbtAnalysisCollection . . . Event Cut ... StHbtAnalysis Event- Mixing Buffer Particle 1 Cut Particle 2 Cut Pair Cut StHbtCorrFctnCollection CorrFctn CorrFctn ... http://duvall.star.bnl.gov/STARAFS/comp/pkg/dev/StRoot/StHbtMaker/doc/ software status • StHbtMaker works in dev on solaris and linux no “setenv MakeDll…” • documentation on web • example in doc/ and in StRoot/macros/examples cvs and $STAR area • several recent CorrFctns and cuts • enhanced functionality recently added... malisa - STAR HBT PWG meeting - 01Aug99

  3. StHbtPair - Selemon Bekele double qInv() const; double kT() const; double mInv() const; double qSidePf() const; double qOutPf() const; double qLongPf() const; double qSideCMS() const; double qOutCMS() const; double qLongCMS() const; double qSideBf(double beta=0.0) const; double qOutBf(double beta=0.0) const; double qLongBf(double beta=0.0) const; Recent functionality enhancement • Reader/StMcEventReader - Frank Laue • Reads StMcEvent object (instead of StEvent object) • builds HBT transient mDST Coulomb Corrections - Randy Wells Transient HBT mDST- Dave Hardtke…. malisa - STAR HBT PWG meeting - 01Aug99

  4. StHbtTrack StHbtEvent StHbtV0Track transient HBT mDST Current StHbtEvent(Dave Hardtke) ... ... unsigned short mEventNumber; unsigned short mCtbMultiplicity; // Central Trigger Barrel unsigned short mZdcAdc[2]; // ZDC values east/west int mTpcNhits; unsigned short mNumberOfTracks; unsigned short mNumberOfGoodTracks; float mReactionPlane[2]; // reaction plane/error StHbtThreeVector mPrimVertPos; StHbtTrackCollection* mTrackCollection; StHbtV0TrackCollection* mV0TrackCollection; //*** good enough? malisa - STAR HBT PWG meeting - 01Aug99

  5. StHbtTrack StHbtEvent StHbtV0Track Current StHbtTrack (Dave Hardtke) ... ... char mCharge; int mNHits; unsigned short mNHitsPoss; float mNSigmaPion; float mNSigmaKaon; float mNSigmaProton; float mdEdx; float mDCAxy; float mDCAz; float mChiSqXY; float mChiSqZ; StHbtThreeVector mP; float mPt; StPhysicalHelixD mHelix; Note: pointer saves space in real data Also need: StHbtLorentzVector* mFreezeOut; malisa - STAR HBT PWG meeting - 01Aug99

  6. StHbtTrack StHbtEvent StHbtV0Track Current StHbtV0Track (Dave Hardtke) ... ... float mNSigmaLambda; float mNSigmaLambdaBar; float mNSigmaK0; float mNSigmaGamma; float mDCA; float mImpactParameter; StHbtThreeVector mP; StHbtThreeVector mV; ?? Clearly need guidance from Strangeness group Also need: StHbtLorentzVector* mFreezeOut; malisa - STAR HBT PWG meeting - 01Aug99

  7. f reconstructionUsing MC data- Frank Laue malisa - STAR HBT PWG meeting - 01Aug99

  8. Parity violationanalysis reals ~50 DST data events N.B. this type of analysis stretches StHbt a bit far. Not really HBT analysis, as a number is calculated for each event. Requires interaction between EventCut and CorrFctn mixed malisa - STAR HBT PWG meeting - 01Aug99

  9. pp Qinv HBT & starting 2-track cut studies... ~50 DST data events (hijing) track-splitting? malisa - STAR HBT PWG meeting - 01Aug99

  10. Track-splitting effects gone when reading from McEvent malisa - STAR HBT PWG meeting - 01Aug99

  11. Issues/to do • creation of HBT persistent mDSTs • need StHbtEventWriters • versioning? • “finalization” of HBT transient mDST content • More analysis of Lanny’s files • Model-weighted pairs based on freeze-out position • Nantes • requires FreezeOut point • 2-track cuts… time to start getting serious • Do we want bi-weekly phone meetings? • start discussing physics as well as software • break cycle of no communication no PWG progress malisa - STAR HBT PWG meeting - 01Aug99

More Related