Download - HES HKS meeting
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HES HKS meeting1 Nov 2010T.Gogami
E05-115 experimental setup in JLab Hall C (2009)
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Content
• HKS GEANT– Vacuum extension– VE flange– NMR port
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Real data
76314CH2 target
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Readiness review (Fig.26)
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Added vacuum extension & NMR port
sus304(Cr 18 , Ni 8)
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Added vacuum extension & NMR port
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NMR Port
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Vacuum extension flange
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Vacuum extension side
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Real data
PortKDC1
KDC2
KDC1
KDC2
Extension chamber76314 , CH2
port , flange
vacuum chamber side
3000 events
20%2%
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POSITRON simulation
• How to usehttp://lambda.phys.tohoku.ac.jp/~
gogami/HES-HKS/POSI_sim2010/howto.pdf
• report– http://lambda.phys.tohoku.ac.jp/~gogami/posi.htm
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Summary and to do• Summary
– HKS GEANT• vacuum chamber
– its side ==> ee+• flange of vacuum chamber
– ee+ , main• NMR port
– ee+ , main
• To do– ee+ background
• reconstruct real xx’ distribution with simulation• rejection code
– Residual of chambers for each arm.– HES tracking
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End負
勝
勝Strangers vs. parabolic
2 : 1
2010/10/27 12:00-
11/04(Thu) 12:00- vs. AXIOM (BBBD)11/05(Fri) 12:00- vs. Ten-Ten-Ten-Mon-Mon-Mon (ABCC)
Strangers (ABBD)
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backup
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Target thickness dependence
H2O52Cr9Be
12C CH2
10B
7Li
rank target
1 52Cr
2 H2O
3 CH2
4 12C
5 9Be
6 7Li
7 10B
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θ vs. momentum of e+