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HES HKS meeting

HES HKS meeting. 4/15/2010 T.Gogami. Today’s talk. GEANT4 spherical uniform distribution ( HKS ) 12 Λ B g.s. width simulation. spherical uniform distribution for HKS. particles distribution at r=1. HKSPrimary GeneratorAction.cc. black  generated events red  accepted events by HKS.

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HES HKS meeting

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  1. HES HKS meeting 4/15/2010 T.Gogami

  2. Today’s talk • GEANT4 • spherical uniform distribution (HKS) • 12ΛB g.s. width • simulation

  3. spherical uniform distribution for HKS particles distribution at r=1

  4. HKSPrimaryGeneratorAction.cc black  generated events red  accepted events by HKS input/sample.in θ, Δθ , φ , Δφ θ ; same as HES side (backup)

  5. spherical uniform distribution for HKS particles distribution at r=1 • p = 1.2±0.3 [GeV/c] • θ = 0.124±0.124 [rad] • φ = 2.64±0.5 [rad] • No collimator

  6. spherical uniform distribution for HKS • p = 1.2±0.3 [GeV/c] • θ = 0.124±0.124 [rad] • φ = 1.57±1.57 [rad] • No collimator Momentum

  7. HKS solid angle simulation condition solid angle ~11 [msr] • p = 1.2±0.3 [GeV/c] • θ = 0.124±0.124 [rad] • φ = 1.57±1.57 [rad] • No collimator

  8. 12ΛB g.s. width is wider than others +100 [keV] [MeV] [MeV] +150 [keV] [MeV] [MeV] generated iterated num. = 10000 All event num. =700 = N second peak event num. = N/4 second peak pos. = +100,150,200[keV] resolution = 500 [keV] background : peak max. = 1 : 4 +200 [keV]

  9. 12ΛB g.s. width is wider than others • peak pos. difference = +150 [keV] • width (FWHM) = 523.9 ± 30.6(1σ) [keV] • mean = 36.27 ± 13.42 (1σ) [keV] document http://lambda.phys.tohoku.ac.jp/~gogami/Gpdf/width_sim2.pdf

  10. summary and to do SUMMARY • HKS spherical uniform distribution • HKS solid angle ~11 [msr] • width simulation • peak pos. difference = +150 [keV] • width (FWHM) = 523.9 ± 30.6(1σ) [keV] • mean = 36.27 ± 13.42 (1σ) [keV] • document • http://lambda.phys.tohoku.ac.jp/~gogami/Gpdf/width_sim2.pdf • Real data • EH • documents • GCOE RA • GCOE 若手イニシアティブA ~4/21 • 奨学金 ~4/30 • 学振 ~5/6 TO DO

  11. backup

  12. HESPrimaryGeneratorAction.cc 4/8/2010 meeting ppt input/sample.in θ, Δθ , φ , Δφ Δθ θ Δθ min max Δa Δa a

  13. 12ΛB g.s. width is wider than others +100 [keV] [MeV] [MeV] +150 [keV] [MeV] [MeV] generated iterated num. = 10000 All event num. =700 = N second peak event num. = N/2 second peak pos. = +100,150,200[keV] resolution = 500 [keV] background : peak max. = 1 : 4 +200 [keV]

  14. 12ΛB g.s. width is wider than others +100 [keV] [MeV] [MeV] +150 [keV] [MeV] [MeV] generated iterated num. = 10000 All event num. =700 = N second peak event num. = N/3 second peak pos. = +100,150,200[keV] resolution = 500 [keV] background : peak max. = 1 : 4 +200 [keV]

  15. 12ΛB g.s. width is wider than others document http://lambda.phys.tohoku.ac.jp/~gogami/Gpdf/width_sim2.pdf

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