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HES HKS meeting

HES HKS meeting. 7/Feb/2011 T.Gogami. 今日の朝ごはん @ Quark café. Contents. New event cut strategy (idea) Event display for HES side E01-011 data analysis ( トラ ぺには ないですが ) データサマリはありますか？. Current Pre-track cut with TOF counters. TDC cut Pattern recognition Space points

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HES HKS meeting

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  1. HES HKS meeting 7/Feb/2011 T.Gogami 今日の朝ごはん @ Quark café

  2. Contents • New event cut strategy (idea) • Event display for HES side • E01-011 data analysis (トラぺにはないですが) • データサマリはありますか？

  3. CurrentPre-track cut with TOF counters • TDC cut • Pattern recognition • Space points • Combination of space points • Pre-track • Check corresponding TOF counters with the pre-track • Tracking

  4. CurrentPre-track cut with TOF counters • TDC cut • e- e+ backgrounds • ADC and TDC of Cherenkovs and TOF walls • Hit selection with TOFs • Pattern recognition • Space points • Combination of space points • Pre-track • Check corresponding TOF counters with the pre-track • Tracking

  5. Multiplicity of TOF1X and KDC1-1x Multiplicity of KTOF1X is mostly 1~2 CH2 , 76314 52Cr , 77124

  6. Event cut strategy KTOF2X KTOF1X KDC2 KDC1 • This picture shows only x-layer • x’-layer can be also used Can be cut

  7. Event cut strategy KTOF2X KTOF1X KDC2 KDC1 • 5~6% of the KDC sensitive region (x-z plane) 1220.0 Width = 95.0 Width = 75.0 59.4 72.8 1499.6 1664.5 2671.6

  8. Event cut strategy Can be cut before pattern recognition

  9. HES event display

  10. HES tracking start • EDC1 • Trans • Pattern recognition • Pre link • Cleanup • Left right • Track fit • EDC2 • Trans • Pattern recognition • Left right • Track fit • e_physics Hit information in EDC1 Hit information in EDC2 • Tracking information • x,x’,y,y’ at Reference plane • EHODO data

  11. HES event display HESdisp HESdetectors EDC1 data EDC EDC2 • EMACS • makedata.sh dat file ENGINE

  12. Multiplicity in chambers Multi-hit TDC HES layer 10 6 52Cr target CH2 target mean ~ 1 hit mean ~ 1 hit HKS 6 6 layer 52Cr target CH2 target mean ~ 6 hit mean ~ 2 hit 22nd Indian-summer school (SNP2010)

  13. CH2

  14. Event display for HES (CH2) Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires

  15. Event display for HES (CH2) ENGINE -> dat -> dat’ -> display Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires There’s bug

  16. Event display for HES (CH2) Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires

  17. 52Cr

  18. Event display for HES (52Cr) Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires

  19. Event display for HES (52Cr) Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires

  20. Event display for HES (52Cr) Track direction Track direction EHODO2 EHODO1 EDC2 EDC1 BLACK : Hit wires BULE : Selected wires

  21. Get Event display • Copy /home/gogami/ makeEdisp.sh • Execute $ ./makeEdisp.sh • Sample data • 76314 : CH2 • 77124 : 52Cr

  22. bug RunID Event ID Total hit Miscount of hit num. per layer EDC1 EDC1 EDC1 Total hit EDC2 9 ? 11 ? EDC2 EDC2 Haven’t fixed yet

  23. Summary and To do • Summary • New event cut strategy for HKS (idea) • With TOFs before pattern recognition • Event display for HES • Cleaner than HKS (multiplicity is less than HKS) • Found a bug in HKS tracking • Miscount of hit num. per layer in EDC2 • To do • Quantitative results of tracking for each target • Efficiency • With GEANT , With real data • Resolution • Rate , multiplicity • Cut background event which comes from NMR port • Before pattern recognition • New event cut routine • ADC and TDC correlation of Cherenkovs or TOFs • E01-011

  24. END Residence facility CEBAF center タバコを吸う場所 元バスケットコート 6Feb2011 ここに道が通りました。 他にも色々と変わりました。

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