Pion-LT analysis instructions/adjusting cuts

From HallCWiki
Revision as of 01:20, 30 August 2021 by Junaid (talk | contribs) (→‎Timing)
Jump to navigationJump to search

Adjusting Analysis Cuts in the PionLT Experiment

  • All cuts are applied on Replay ROOTfile using the "pion_prod_analysis_sw.py" script located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION//scripts/online_pion_physics/.
    • The "pion_prod_analysis_sw.py" script is getting cuts definitions from /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/CUTS files.
    • If someone want to change the cut parameters, he has to change cut values in related csv files located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/PARAM/.
      • Note: Please don't change any cuts values if you don't know about it.

Adjusting Cut Parameters

  • One can adjust the cut parameters as follows:

RF Timing Cuts

  • If someone wants to change the RF timing cut parameters, he has to change cut values in the "ALL_Kinematics_RFOffsetsTest.csv" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/PARAM/.
  • The "ALL_Kinematics_RFOffsetsTest.csv" file looks like;
      RF.png
  • Here "Pi" refers to pions, "K" refers to kaons and "p" refers to protons respectively.

PID

  • If someone wants to change the PID cut parameters, he has to change cut values in the "PID_Parameters.csv" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/PARAM/.
  • The "PID_Parameters.csv" file looks like;

PID.png

  • Here "H" refers to HMS and "P" refers to SHMS respectively.

Acceptance

  • If someone wants to change the Acceptance cut parameters, he has to change cut values in the "Acceptance_Parameters.csv" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/PARAM/.
  • The "PID_Parameters.csv" file looks like;
      Accept.png
  • Here "H" refers to HMS and "P" refers to SHMS respectively.

Adjusting Cut Definitions

  • One can adjust the cut definitions as follows:

Timing

  • If someone wants to change the timing cut definitions, he has to change it in "coin_time.cuts" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/CUTS/general.
  • The "coin_time.cuts" file looks like;

Time def.png

  • Here "CT" refers to Coin Time and "RF" refers to Reference Time respectively.

PID

  • If someone wants to change the PID cut definitions, he has to change it in "pid.cuts" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/CUTS/general.
  • The "pid.cuts" file looks like;

Accept def.png

  • Here "H" refers to HMS and "P" refers to SHMS respectively.

Acceptance

  • If someone wants to change the acceptance cut definitions, he has to change it in "accept.cuts" file located at /home/cdaq/hallc-online/hallc_replay_lt/UTIL_PION/DB/CUTS/general.
  • The "accept.cuts" file looks like;
    Accept def.png
  • Here "H" refers to HMS and "P" refers to SHMS respectively.
Retrieved from "https://hallcweb-2024.jlab.org/wiki/index.php?title=Pion-LT_analysis_instructions/adjusting_cuts&oldid=17224"