In this reproduction, the main changes are :

1. keep all signs combinations (-+,+-,++,--)
2. 2 or more silicon hits
3. momentum based based on the sum of daughters momentum (Pkaon + Ppion > 1.5)

update : 8/04

The files produced so far are :

/star/institutions/ksu/bouchet/RE_PRODUCTION/analysis/

test_day98.root

test_day99.root

test_day104.root 

test_day105_1.root 

test_day105.root 

test_day109.root

The cuts used to make the D0Tree are listed here

The D0Tree has the following structure : here

I filtered the files listed above to make the pico (= lighter) files by applying some others cuts :

 if((thetaGJ[ii]>-.6 && thetaGJ[ii]<.6) &&
             (probability[ii]>.1)                &&
             (RapD0[ii]>-.5 && RapD0[ii]<.5)     &&
             (slength[ii]>0)                     &&
             ((TMath::Abs(ndEdxPion[ii])<2) && (TMath::Abs(ndEdxKaon[ii])<2)))

so basically, the cuts are :

1.  on the cosTheta of the kaon with respect to the D0 flight line , in the D0 frame
2.  probability > 0.1 (the probability is the one from the secondary vertex fit ; from simulation, we've that there is a peak for low probabilities due to wrong fit)
3. decay length > 0 (negative decay length are not physical/real decays)
4. |number of sigma of dEdx |<2 for both daughters tracks

NOTE : 

there is still the original files w/0 these cuts. I've applied these cuts to reduce the size of the files (already huge) w/o biasing (I guess) the signal.

I can redo some samples if one needs

warning :

the files are moved to :

/star/data05/scratch/bouchet/REPRODUCTION/ 

CURRENT JOBS STATUS : here

EXCEL SHEET : here

MAGNETIC FIELD RUN 7 :

• FULL FIELD : from day 96 to day 142
• REVERSED FULL FILED : from day 143 to day 177