Difference between revisions of "CSV Fall 2018 Run Plan"

Revision as of 14:33, 16 November 2018

Quick start instructions

1. Each setting has count goal to be reached, e.g., "20000/ 276". This means 20000 "good coin events" (see next item) need to be counted. The charge, 276 mC, is just an estimate.
2. The counts for a given replay are obtained by:

   bash_csv counter # will setup environment
   root -b -q "good_coin_counter2.cxx(6022,-1)" # for run 6022 and all events (-1)
   

Note: At the start of a new setting, you can do a replay of 100000 events (./run_full_sidis.sh <run> 100000), and run the counter on that analysis (replace "-1" with "100000" in the script arguments) to get an estimate of how many CODA events are required.

1. Files to update:

   DBASE/COIN/standard.kinematics

   Keep current before running any replays

   CSV_STUFF/csv_sidis_run_list.txt

   Keep track of run info

2. Update the tables in the wiki:
   1. Add good coin counts in "actual"
   2. Set the correct run (or range of runs) under "Runs"
3. Go to Information_for_Shift_Takers

Fall 2018 run plan

Goal

The goal of the E12-09-002 experiment is to measure the ratio of semi-inclusive pi+ and pi- production from LD2 for the purpose of looking for Charge Symmetry Violation (CSV) in quark distributions.

Experimental setup

• Main trigger is 3/4 in the HMS in coincidence with 3/4 in the SHMS.
• HMS is setup for detecting electrons (inclusive DIS measurement).
• SHMS is setup for detecting charged pions and kaons (semi-inclusive DIS measurement).

Settings to monitor during shift

• Beam energy: 10.6 GeV. Raster 2x2
• Beam current:
  • The nominal beam current is 50 muA for pi- and 25 muA for pi+. The main goal is to keep the total rate in the pion arm the same at both polarities (500 kHz or less). If the rate exceeds 500 kHz, please adjust the beam current accordingly.
• Trigger:
  • Main trigger is 3/4 (TRIG 4) in HMS in coincidence with 3/4 (TRIG1) in SHMS.
• Prescale: PS6=0 all the time. Adjust PS4 to give at least 100 Hz (and no more than 200 Hz) of HMS singles.

Runplan

• Order of Kinematic Settings
  • Hydrogen Elastics DONE
  • Setting 2 (Q2=4, x=0.35, pi+) DONE
  • Setting 1 (Q2=4, x=0.35, pi-) DONE
  • Setting 5 (Q2=4, x=0.45, pi-) DONE
  • Setting 6 (Q2=4, x=0.45, pi+) DONE
  • Setting 10 (Q2=4.75, x=0.45, pi+) DONE
  • Setting 9 (Q2=4.75, x=0.45, pi-) IN PROGRESS
  • Setting 13 (Q2=4.76, x=0.55, pi-)
  • Setting 14 (Q2=4.76, x=0.55, pi+)
  • Setting 15 (Q2=4.78, x=0.6, pi+)
  • Setting 16 (Q2=4.78, x=0.6, pi-)

Hydrogen Coincidence Elastics for HMS Checks

Make sure both the HMS and SHMS magnets are cycled appropriately when doing this scan: go to MOL when increasing momentum. PS6=0, all others (ps1, etc.) =-1

Kinematic Group 1: Q2 = 4 GeV2, x = 0.35

Kinematic group 1 total time : 15.1382 hrs (0.630757 days)

Kinematic Group 2: Q2 = 4 GeV2, x = 0.35

Kinematic group 2 total time : 14.8007 hrs (0.616696 days)

Kinematic Group 3: Q2 = 4 GeV2, x = 0.4

Kinematic group 3 total time : 5.60701 hrs (0.233625 days)

Kinematic Group 4: Q2 = 4 GeV2, x = 0.4

Kinematic group 4 total time : 5.82631 hrs (0.242763 days)

Kinematic Group 5: Q2 = 3.898 GeV2, x = 0.45

Kinematic group 5 total time : 18.6252 hrs (0.776048 days)

Kinematic Group 6: Q2 = 3.898 GeV2, x = 0.45

Kinematic group 6 total time : 17.0456 hrs (0.710234 days)

Kinematic Group 7: Q2 = 3.979 GeV2, x = 0.5

Kinematic group 7 total time : 8.04809 hrs (0.335337 days)

Kinematic Group 8: Q2 = 3.979 GeV2, x = 0.5

total time : 92.6258 hrs (3.85941 days)

Kinematic Group 9: Q2 = 4.75 GeV2, x = 0.45

Kinematic group 9 total time : 33.1056 hrs (1.3794 days)

Kinematic Group 10: Q2 = 4.75 GeV2, x = 0.45

Kinematic group 10 total time : 29.615 hrs (1.23396 days)

Kinematic Group 11: Q2 = 5 GeV2, x = 0.5

Kinematic group 11 total time : 15.3056 hrs (0.637731 days)

Kinematic Group 12: Q2 = 5 GeV2, x = 0.5

Kinematic group 12 total time : 16.1401 hrs (0.672505 days)

Kinematic Group 13: Q2 = 4.764 GeV2, x = 0.55

Kinematic group 13 total time : 50.455 hrs (2.10229 days)

Kinematic Group 14: Q2 = 4.764 GeV2, x = 0.55

Kinematic group 14 total time : 45.194 hrs (1.88308 days)

Kinematic Group 15: Q2 = 4.775 GeV2, x = 0.6

Kinematic group 15 total time : 21.5776 hrs (0.899065 days)

Kinematic Group 16: Q2 = 4.775 GeV2, x = 0.6

total time : 233.766 hrs (9.74024 days)

Kinematic Group 17: Q2 = 5.5 GeV2, x = 0.5

Kinematic group 17 total time : 15.4866 hrs (0.645276 days)

Kinematic Group 18: Q2 = 5.5 GeV2, x = 0.5

Kinematic group 18 total time : 9.75011 hrs (0.406254 days)

Kinematic Group 19: Q2 = 5.5 GeV2, x = 0.5

Kinematic group 19 total time : 10.0194 hrs (0.417474 days)

Kinematic Group 20: Q2 = 5.5 GeV2, x = 0.5

Kinematic group 20 total time : 7.2565 hrs (0.302354 days)

Kinematic Group 21: Q2 = 5.499 GeV2, x = 0.55

Kinematic group 21 total time : 19.1588 hrs (0.798284 days)

Kinematic Group 22: Q2 = 5.499 GeV2, x = 0.55

Kinematic group 22 total time : 12.1535 hrs (0.506396 days)

Kinematic Group 23: Q2 = 5.499 GeV2, x = 0.55

Kinematic group 23 total time : 12.5379 hrs (0.522411 days)

Kinematic Group 24: Q2 = 5.499 GeV2, x = 0.55

Kinematic group 24 total time : 9.11064 hrs (0.37961 days)

Kinematic Group 25: Q2 = 5.5 GeV2, x = 0.6

Kinematic group 25 total time : 24.4658 hrs (1.01941 days)

Kinematic Group 26: Q2 = 5.5 GeV2, x = 0.6

Kinematic group 26 total time : 15.6546 hrs (0.652274 days)

Kinematic Group 27: Q2 = 5.5 GeV2, x = 0.6

Kinematic group 27 total time : 16.2192 hrs (0.675802 days)

Kinematic Group 28: Q2 = 5.5 GeV2, x = 0.6

Kinematic group 28 total time : 11.8304 hrs (0.492934 days)

Kinematic Group 29: Q2 = 5.63 GeV2, x = 0.65

Kinematic group 29 total time : 34.4627 hrs (1.43594 days)

Kinematic Group 30: Q2 = 5.63 GeV2, x = 0.65

Kinematic group 30 total time : 22.1895 hrs (0.924563 days)

Kinematic Group 31: Q2 = 5.63 GeV2, x = 0.65

Kinematic group 31 total time : 23.053 hrs (0.960542 days)

Kinematic Group 32: Q2 = 5.63 GeV2, x = 0.65

total time : 260.204 hrs (10.8418 days)

run time: 586.596 hrs (24.4415 days)