HES-HKS & KaoS meeting

Toshi Gogami2/Sep/2011

Shirotori-san in 景福宮 (24/Aug/2011)

Contents

– Xt func. calibration for 12C high current data – APFB2011– E01-011 SPL+ENGE GEANT4 code

Abs(WC – TC) vs. Drift time

s0

Wire center

Track coordinate

Black : |WC-TC|Magenta : Profile of |WC-TC|Green : x-t calc.

Track

Fitting

The number Residuals

NEW PARAMETERS

• Residual better– KDC1 ; 400 [μm] 300 [μm]

• Number up– 10% increased at χ2 <20

52Cr target

After x-t func. Correction (12C high current run)

• Residuals– No big difference

• Chi-square– Better Number of event ( χ2>20 ) 4% up

Χ2 cut

4 % up

RUN : 75952 ( 33.0 μA )

APFB2011

景福宮 昌徳宮 昌慶宮

宗廟

SKKU

東大門

APFB2011

景福宮 昌徳宮 昌寿宮

宗廟

SKKU

東大門

600th anniversary building

International Hall

PICUTES (http://lambda.phys.tohoku.ac.jp/~gogami/pictH/pict_menu_korea.htm)

APFB2011

• Talk (20min)– Contents

• (e,e’K+) experiment in JLab– 7

ΛHe (preliminary result) CSB

– 10ΛBe (Analyzing)

– Questions!• Why the widths of Λ and Σ0 are wide?• What about excitation state of 7ΛHe?• What is the largest contribution to your energy resolution?• What is the advantage of large momentum transfer?• Is the Linearity of spectra which are out of Λ-Σ0 region OK?

– Presentation file• http://lambda.phys.tohoku.ac.jp/~gogami/ppt/APFB2011_gogami.pdf• http://lambda.phys.tohoku.ac.jp/~gogami/ppt/APFB2011_gogami.pptx

• Proceedings– Due to submit by 9/20 !!

E01-011 SPL magnetic field map

~fujii/qqd70-pub/map/sp1-meshSI.table

GEANT4 ( SPL + ENGE )

Summary and To do

• Summary– Xt func. calibration for 12C high current data

Less improvement than I expected

– APFB2011• 9/22 – 9/26• Proceedings must be submitted by 9/20.

– E01-011 SPL+ENGE GEANT4 code• Start coding

• To do– ENGE+SPL GEANT4 code– APFB2011 Proceedings (by 9/20)– JPS (9/17) in Hirosaki, Japan– ECT in Trento, Italy

END

昌慶宮 (26/Aug/2011), Seoul, South Korea