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Software Update Takashi HACHIYA RIKEN 2012/1/31VTX software meeting1.

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Presentation on theme: "Software Update Takashi HACHIYA RIKEN 2012/1/31VTX software meeting1."— Presentation transcript:

1 Software Update Takashi HACHIYA RIKEN 2012/1/31VTX software meeting1

2 TaskList ItemsissuesDayspentstatus CNT+Clusterdefine output & its coding2 days3 dDone Debugging1w(+2w)0Modified Parameter tuning(chi2)1s0doing Memory leak problemdoing Test productionGood run listNot Yet Management issueUpdate tasklist in WIKI1d0dNot yet Maintain Task list0d AnalysisMeeting Helping1d/wShift&DST PrimVtxModify prim vtx output2d1dKeep unchanged 2012/1/262RIKEN VTX software meeting

3 Analysis Meeting Pp500GeV Production – Due to Alpha =0 problem, the production is stopped. (The cause is not clear, hardware/software) – EMCAL calibration problem (PbGl) The VTX status is shown at the meeting – Reported Current status and DCA distribution with electrons – Comments Schedule and time estimate is requested. should also include timelines for individual modules that are needed for other projects (e.g. reaction plane) – I would like to ask your plan of the code development 2012/1/31VTX software meeting3

4 Homework Centrality dependence of the DCA Momentum dependence of the DCA Update on the Chi2 calculation 2012/1/31VTX software meeting4

5 Centrality Dependence of DCA (pT>1GeV/c) Fit with gaussian + pol2 (BG) The width looks almost same for all centralities. 60k events are analyzed 2012/1/31VTX software meeting5 5-20%20-40%40-60%60-92%0-5% 75um 84um 79um 78um81um B0, B2, B3 is required |dz3|<0.5, |dphi3|<0.5 |dphi2–dphi3|<0.05, |dphi0–dphi2|<0.03 N0>2&&E/p>0.5 (for electrons)

6 pT dependence of the DCA (MB) The width is narrower with higher pT. 60k MB event is analyzed. 2012/1/31VTX software meeting6 0.4<pT<0.6 0.6<pT<0.80.8<pT<1.01.0<pT<1.51.5<pT<2.02.0<pT<3.0 143um114um 97um84um77um67um

7 Update on the Chi2 calculation A bug in the Chi2 calculation – Fixed: Sigma values for correlation cuts are updated. – Originally one value is used for all correlation cuts. – Now Sigma for B3-B2, B3-B1, B3-B0, B2-B1, B2-B0, B1-B0 is obtained. – Method: dphi_N-dphi_M (dz-dz) histograms for momentum bins Get sigma value by fitting gaussian + pol2 Plot sigma vs pt Fit it with an empirical function. 2012/1/31VTX software meeting7

8 dphi2-a*dphi3 2012/1/31VTX software meeting8 0.2<p<0.3 0.3<p<0.40.4<p<0.5 0.5<p<0.6 0.6<p<0.80.8<p<1.01.0<p<1.51.5<p<2.0 2.0<p<3.0 3.0<p<4.0 (cm) Fit with gaussian + pol2 (BG)

9 2012/1/31VTX software meeting9 dphi2-dphi3dphi1-dphi3dphi0-dphi3 dphi1-dphi2dphi0-dphi2dphi0-dphi1 dphi-dphi(cm) p(GeV/c) Fitting is failed dphi_N – dphi_M vs p (GeV/c) Fit with a + b/(x)

10 2012/1/31VTX software meeting10 Fit with a + b/(x*x) Problem: due to double peaks in dz, the fittings are failed. Therefore, chi2 value for dz can be underestimated dz2-dz3dz1-dz3dz0-dz3 dz1-dz2dz0-dz2dz0-dz1 dz-dz(cm) p(GeV/c) dz-dz(cm) dz_N – dz_M vs p (GeV/c)

11 Chi2 (dphi) is slight wrong (underestimated) In the actual chi2 calculation, chi2(dphi)+chi2(dz) is used. 2012/1/31VTX software meeting11 Nhit>2 Nhit>3 Chi2_dphi Chi2_dz Chi2 distribution

12 DCA distribution with Chi2 cut Correlation cut – B0, B2, B3 is required – |dz3|<0.5, |dphi3|<0.5 – |dphi2–dphi3|<0.05, – |dphi0–dphi2|<0.03 Chi2 cut – B0, B2, B3 is required – |dz3|<0.5, |dphi3|<0.5 – Chi2(dphi)<1 2012/1/31VTX software meeting12 (cm) DCA with correlation cut DCA with chi2 cut

13 Memory Leak Problem A big memory leak is found. – Fixed (not commit yet) in the CentralTrackReco. But still big memory leak(s) remains. 2012/1/31VTX software meeting13

14 Things To Do Remaining issues on the SvxCentralTrackReco – Parameter tuning. – Improve Chi-Square value for track selection (ON GOING) – Bugs newly found. (process was suddenly crashed. It seems somehow memory access error) (ON GOING) /home/phnxbld/new/source/offline/framework/fun4all/Fun4AllServer.C: 573: caught exception thrown during process_event: St9bad_alloc According to GOOGLE, this happens when the memory consumption is “too much ”. – Improve DCA value using the associated cluster information. (Not Yet) – Speed up – Efficiency Study using Simulation (Evaluator) – Developing the method to estimate Random BG. Maki is working on. DC track will be tilted 1 degree, taking into account the dependense of the particle density in an event. 2012/1/31VTX software meeting14

15 backup 2012/1/31VTX software meeting15

16 Centrality Definition 5-20% 20-40% 40-60% 60-92% 2012/1/31VTX software meeting16 0-5%

17 dphi_i – dphi_j dphi2 vs dphi3dphi1 vs dphi3dphi0 vs dphi3dphi1 vs dphi2dphi0 vs dphi2dphi0 vs dphi1 Phi direction is well Aligned!! 2012/1/31VTX software meeting17

18 dZ_i vs dZ_j dz2 vs dz3dz1 vs dz3dz0 vs dz3dz1 vs dz2dz0 vs dz2dz0 vs dz1 Alignment is needed for Z-direction 2012/1/31VTX software meeting18

19 Dphi1-dphi3 2012/1/31VTX software meeting19

20 Dphi0-dphi3 2012/1/31VTX software meeting20

21 Dphi1-dphi2 2012/1/31VTX software meeting21

22 dphi0-dphi2 2012/1/31VTX software meeting22

23 dphi0-dphi1 2012/1/31VTX software meeting23

24 dz2-dz3 2012/1/31VTX software meeting24

25 dz1-dz3 2012/1/31VTX software meeting25

26 dz0-dz3 2012/1/31VTX software meeting26

27 dz1-dz2 2012/1/31VTX software meeting27

28 dz0-dz2 2012/1/31VTX software meeting28

29 dz0-dz1 2012/1/31VTX software meeting29

30 TaskList ItemsissuesDayspentstatus CNT+Clusterdefine output & its coding2 days3 dDone Debugging1w(+2w)0Modified Parameter tuning1s0doing Refitting for mom.2wMatt is doing Test productionGood run listNot Yet Management issueUpdate tasklist in WIKI1d0dNot yet Maintain Task list0d AnalysisMeeting Helping1d/wShift&DST svxDetectorGeoAdding offset for coor.3d0Done DB I/F for Offset and BeamCenterDone PriVerSeedResolution is too small.0dDone by Akimoto- kun PrimVtxModify prim vtx output2d1dKeep unchanged Hot&Dead in sim.Apply hot&dead2d Done ReactionPlaneDiscuss the class structure2d0dDone Coding the storage object3d Done Dicussion w/ colorado3ddone 2012/1/2630RIKEN VTX software meeting

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