The introduction of positron analysis in the group.
To be finished.
Data Format
The
MN ntuple could be used directly, but a preselected sample is also prepared by Shaowen Zhang. It is placed under
/farm/nas03/user/zhangs/filter-electron
directory. There are
posevents
and
negevents
directory which store events according to rigidity sign.
The preselection for this sample is:
-
goodDAQ :
- not badrun not in inSAA livetime>0.7 not pass Solar Array zenith<40 good RTI good alignment
-
with Tracker Track :
-
(rigidity sign : rig[1]<0 or rig[1]>0)
-
1or2 shower :
-
charge1 :
-
shower-track matching :
- shower-track match X 2cm Y 5 cm
-
ecal fiducial volume :
- Ecal fiducial volume 30.6cm
-
above cutoff :
-
good TRD :
-
good TOF beta :
- tof_patth=4444 && tof_betah>0.8
-
tracker quality :
- trk_chi2y<10 trk_chi2x<10
-
EoP :
Analysis procedure
to be finished...
--
TangZhicheng - 2016-04-08