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HES-HKS & KaoS meeting

HES-HKS & KaoS meeting. 15/July/2011 T.Gogami. Wiesbaden のお風呂はこんな感じでした. Content. E05-115 KDC x-t parameter correction (H 2 O , 52 Cr). E05-115. S.N.Nakamura. Cherenkov . N.Taniya. EHODO cabling ( 30/July/2009 ). Residuals & x-t correlation. CH 2 target. 52 Cr target.

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HES-HKS & KaoS meeting

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  1. HES-HKS & KaoS meeting 15/July/2011 T.Gogami Wiesbadenのお風呂はこんな感じでした

  2. Content • E05-115 • KDC x-t parameter correction (H2O , 52Cr)

  3. E05-115 S.N.Nakamura Cherenkov .N.Taniya EHODO cabling ( 30/July/2009 )

  4. Residuals & x-t correlation CH2 target 52Cr target X-t function is worse ?

  5. abs(WC –TC) vs. Drift time CH2 target 52Cr target |Wire center – Track coordinate| Drift distance Drift distance Black : |WC-TC| Magenta : Profile of |WC-TC| Green : x-t calc. Track coordinate Wire center s 0

  6. abs(WC –TC) vs. Drift time ( with Tracking chi-square cut ) • trkchi2 < 100 • trkchi2 < 50 • trkchi2 < 10

  7. “Drift time” to “Drift distance”(HKS) PARAM / hdriftmap.param.0 number of array +50

  8. h_drift_dist_calc.f drift time Interpolate fractional part gradient ihi ilo

  9. KDC x-t function correction Profiling Fitting Function Parameters • (Tohoku PC in Mainz) • /home/gogami/E05-115/root/hksSingle/xt_calib/ • Makefile • xtCalib.cc • input/param.in • outdat/*.dat 5th order polynomial

  10. Drift Time & Drift Distance After Before 52Cr target (77120 – 77124)

  11. Drift Time & Drift Distance( DD>0.0 && DD<0.5 ) 52Cr target (77120 – 77124) After Before

  12. Drift Time & Drift Distance & residual Run 52Cr 77120 - 77124 Cut 0.0 [cm] < Drift distance < 0.5 [cm] After Before

  13. Tracking residuals (KDC1-x) H2O target 52Cr target • Number of event up! • Residual better! Before Before After After

  14. Tracking chi-square H2O target 52Cr target Tracking quality up! [1]. Total (after,before) = (94444,93226) 1.3% up [2]. Num( <10 ) (after,before) = (47151,43463) 8.5% up [1]. Total (after,before) = (45870,44864) 2.2% up [2]. Num( <10 ) (after,before) = (15279,13417) 13.9% up

  15. Ratio of the number of eventwith same chi-square cut H2O target 52Cr target Rough K+ selection • haernpe1+haernpe2+haernpe3<5.0 • hmsq<0.60 • hwatnkn1+hwatnkn2>1.0 [%] [%]

  16. KaoS experiment Aerogel Cherenkov Detector (13/July/2011)

  17. Preparation for beam time • Target (7Li,9Be) [Anselm] • Aerogel [Luka, Tohoku] • TOF [Florian] Cosmic-ray Test Cutting Aerogel New spacer

  18. Summary and To do • Summary • E05-115 • x-t function correction for 52Cr & H2O target (No iteration)  Got better • To Do • E05-115 • x-t function correction iteration for 52Cr & H2O target • Tracking(HES, HKS) • DC info selection with TOF, AC (WC) • Efficiency • EHODO • Low momentum side of HKS • E01-011 • Y-offset of RP pattern with SS hole cut • Decay pion experiment • 7/19- • APFP2011 • Conference Fee (Early :300USD, On-site:400USD) - 7/20 • Stay permission in Germany • Interview on 7/26 10:00-

  19. 公園で温泉が湧いてた End Wiesbaden, Germany (9/July/2011) ハーゲンダッツ

  20. Number Comparison (no cut) H2O target 52Cr target

  21. Number Comparison (Kaon Select) H2O target 52Cr target

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