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HES-HKS & KaoS meeting

HES-HKS & KaoS meeting. Toshi Gogami 11/July/2012. Contents. TOSCA calculation of SPL with field clamp + ENGE model XT function calibration. SPL with f ield clamp + ENGE. New magnetic field map  Committed to the svn. SPL with field clamp + ENGE. Line Y=0

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HES-HKS & KaoS meeting

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  1. HES-HKS & KaoS meeting Toshi Gogami 11/July/2012

  2. Contents • TOSCA calculation of SPL with field clamp + ENGE model • XT function calibration

  3. SPL with field clamp + ENGE New magnetic field map  Committed to the svn

  4. SPL with field clamp + ENGE Line Y=0 (X,Z) : (-40,15)  (40,65) Subtraction Ratio

  5. SPL + ENGE Geant4 simulation(ENGE01) 1.851GeV SPL ENGE

  6. Want Λ,Σ0tuning power H2O ⇔ CH2 (75921 – 75923)

  7. xt parameters for H2O target Parameter data base • 75886-75918 e05115.param.75886-->1 • 75919-75920 e05115.param.75919-->2 • 75921-75923 e05115.param.75921-->3 • 75924-75931 e05115.param.75921 • 75932-75946 e05115.param.75932-->4 • 75947-75947 e05115.param.75947-->5 • 75948-75950 e05115.param.75932 • 75951-75967 e05115.param.75951-->6 • 75968-75969 e05115.param.75968-->7 • 75970-75973 e05115.param.75932 • 75974-75976 e05115.param.75921 HKS drift distance map • 1 : hdriftmap.param.75902 • 2 : hdriftmap.param.75885 (no use for H2O target) • 3 : hdriftmap.param.75928 • 4 : hdriftmap.param.75928 • 5 : hdriftmap.param.75928 • 6 : hdriftmap.param.75952 (no use for H2O target) • 7 : hdriftmap.param.75968 (no use for H2O target) ==> It means that parameters No.1 and No.3(=No.4=No.5) need to be optimized for H2O target runs. hdriftmap.param.75902 : 75886-75918 hdriftmap.param.75928 : Others

  8. XT functions 9th polynomial

  9. Tracking residuals of each layers

  10. Drift distance 1 + 2  0.5 cm H2O, 52Cr Peak mean 0.48 cm

  11. To do • JLab E05-115 • Parameter optimization (xt functions)for H2O, 52Cr target • Matrices tuning • Weight study (angle, momentum) • Cut conditions (concerning S/N) • Histograms Biding energy Cross section (Λ,Σ0 from CH2 and H2O target)

  12. END 9/July/2012

  13. x-t function calibration Fitting Function Black : |WC-TC| Magenta : Profile of |WC-TC| Green : x-t calc. Track Track coordinate Wire center 0 s Drift distance |Wire center – Track coordinate| HES/HKS collaboration meeting, T.Gogami

  14. x-t calibration for 52Cr Target • Residuals better • KDC1 ; 400 [μm]  300 [μm] • Number up • ~10% increased at χ2 <20 • (~5% increased without χ2 cut) χ2 cut condition HES/HKS collaboration meeting, T.Gogami

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