Tags:
create new tag
view all tags

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:

  1. goodDAQ :
    • not badrun not in inSAA livetime>0.7 not pass Solar Array zenith<40 good RTI good alignment
  2. with Tracker Track :
    • ntrk>0
  3. (rigidity sign : rig[1]<0 or rig[1]>0)
  4. 1or2 shower :
    • ecal_nsh<3
  5. charge1 :
    • 0.8<trk_qin<1.4
  6. shower-track matching :
    • shower-track match X 2cm Y 5 cm
  7. ecal fiducial volume :
    • Ecal fiducial volume 30.6cm
  8. above cutoff :
    • cutoff
  9. good TRD :
    • trd_nhits[1]>14
  10. good TOF beta :
    • tof_patth=4444 && tof_betah>0.8
  11. tracker quality :
    • trk_chi2y<10 trk_chi2x<10
  12. EoP :
    • eop>0.3

Analysis procedure

-- TangZhicheng - 2016-04-08

Edit | Attach | Watch | Print version | History: r6 < r5 < r4 < r3 < r2 | Backlinks | Raw View | Raw edit | More topic actions
Topic revision: r6 - 2016-08-10 - TangZhicheng
 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 2008-2019 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback