J/psi-007 Instructions for Shift Takers

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Jpsi007.png

Instructions for J/ψ-007


1. Keep an eye on the Hall C Scaler Data GUI and make sure the rates with beam ON are steady

2. After 50K triggers, check online plots for the detectors

a. Login to cdaql1 machine and go to hallc_replay directory if you are not there already:

  > ssh cdaql1 
  > go_analysis 

b. Update the file " standard.Kinematics ":

For COIN runs, this is:

   $HOME/hallc-online/hallc_replay/DBASE/COIN/standard.kinematics

For runs taken with the separate DAQs during detector checkout and calibrations, the paths are

   $HOME/hallc-online/hallc_replay/DBASE/HMS/standard.kinematics
   $HOME/hallc-online/hallc_replay/DBASE/SHMS/standard.kinematics

See the run plan to check which DAQ should be running.

c. WHen running coin DAQ, at 50k events, run scripts

  for SHMS detector check: ./run_coin_shms.sh <run_number> <last_event>
  for HMS detector check: ./run_coin_hms.sh <run_number> <last_event>
  <last_event> defaults to 50000 
  By adding the <last_event> the replay will be done from <last_event>-49999 to <last_event>

d. WHen running two single arm DAQs, at 50k events, run scripts

  for SHMS detector check: ./run_shms.sh <run_number>
  for HMS detector check: ./run_hms.sh <run_number>

Note electron tracking efficiency for HMS and hadron tracking efficiency for SHMS from resulting report files.