HES-HKS & KaoS meeting
description
Transcript of HES-HKS & KaoS meeting
HES-HKS & KaoS meetingToshi Gogami25/Apr/2013
Contents
Raster Correction
Analysis flow
Initial ROOT file
Tuning1. Event selection
• Fitting mean+ 2σ etc.
2. Matrix tuning for selected events
3. Create new missing mass spectra
4. Fitting for new MM Output logs
Iteration
After Iteration
2. Create new ROOT file by new matrices
1. Select better matrices• By width(Λ,Σ,12LB)
ROOT file
LOOP
KRD
Analysis flow
Initial ROOT file
Tuning1. Event selection
• Fitting mean+ 2σ etc.
2. Matrix tuning for selected events
3. Create new missing mass spectra
4. Fitting for new MM Output logs
Iteration
After Iteration
2. Create new ROOT file by new matrices
1. Select better matrices• By width(Λ,Σ,12LB)
ROOT file
LOOP
KRDRaster Correction
Present Raster Correction
OFFSET
Correction
Correction by a linear function
Λw/o RC
Correction by a linear function
Λw/o RC
Comparison
Mean (Λ) Width (Λ) Mean (Σ0) Width (Σ0)
w/o RC 939±27 1434±31 1330±41 1157±43
Present RC -248±24 1149±26 -191±189 1242±126
New RC 932±26 1387±29 1310±38 1095±39
w/o RC
Present RC
New RC
Coding is in progress
Estimate the raster correction functions every loop
Outlook
• There was a shift due to the raster correctionWill be fix soon
• Scaling factor for the energy loss of CH2 targetNeed to be estimated again
( by using H2O, 12C target data )
他
• 学振 PD– 5 月 9 日 締切 ( 受入研究機関必着
)• Paper (HLAB MEETING)• 履修登録