Revision as of 13:16, 23 January 2023

Pion-LT (E12-19-006)

Pion Electroproduction Cross Section at 11 GeV and Measurement of the Charged Pion Form Factor to High Q2

COVID guidance for weekend shift-workers

RC Meeting Zoom Link - Meeting ID: 160 710 0885

RC Daily Meetings and Runplans (Summer 2022)

Run period 3 (high epsilon): 06-June-2022 - 09-Sept-2022

• Shift Signup
• Shift Signup (Read only)
• Hall-C Logbook
  • KaonLT Logbook - Used for PionLT updates too
• Run Plans
• Pion-LT Redmine Wiki
• Pion-LT specific shift instructions
• Pion-LT analysis instructions
  • Pion-LT analysis instructions/adjusting cuts
• PionLT_2022_Physics_Status

Run period 2 (low epsilon): 16-Aug-2021 - 07-Feb-2022

• Shift Signup
• Shift Signup (Read only)
• Hall-C Logbook
• Run Plans pdf version of run plan
• Pion-LT Redmine Wiki
• Pion-LT specific shift instructions
• Pion-LT analysis instructions
  • Pion-LT analysis instructions/adjusting cuts
• PionLT_2021_Physics_Status

RC Links

• RC Daily Meetings and Runplans (Summer 2022)
• On Call List and Instructions
• PionLT_2022_Physics_Status
• KaonLT Logbook - Used for PionLT updates too
• Shutting off HMS LCW
• Morning Meetings 2022

Previous Meeting Pages

• RC Daily Meetings and Runplans (Spring 2022)
• RC Daily Meetings and Runplans (Fall 2021)
• RC Daily Meetings and Runplans (Summer 2019)

Pion-LT E12-19-006 (Run period 1: Low Q2) Summer 2019

https://redmine.jlab.org/projects/hall-c/wiki

• Run Plan
• Pion-LT Redmine
• Pion-LT specific shift instructions
• Pion-LT analysis instructions
• PionLT_2019_Physics_Status

Polarized Helium-3 Experiments (E12-06-110/E12-06-121)

Polarized Helium-3 Experiments (E12-06-110/E12-06-121) main page

Experiment E12-06-110 (A1n) and E12-06-121 (d2n) are scheduled to run from Dec. 3, 2019 to May 6, 2020, with breaks for the X'mas shutdown and the target rotation. These two experiments focus on studies of the nucleon spin structure.

Summer 2019 - E12-06-101/E12-07-105 and E12-15-001

Experiments E12-06-101/E12-07-105 are pion electroproduction experiments and experiment E12-15-001 is a virtual Compton scattering experiment.

For PionLT data in summer 2019, see this section

• Shift Signup
• Shift Signup (Read only)
• RC Daily Meetings and Runplans (Summer 2019)

The VCS Polarizabilities experiment E12-15-001

Please pay attention as instructions have change (7/25/2019)

• Redmine page of this experiment: [1]
• Instructions for shift crew
• Physics and yields monitoring
• Printable run sheets: [2]
• Golden run monitoring display of current running kinematic (Ib): [3]

- combined runs missing mass spectra (replayed until 7/28 1 PM): [4]

• Other kinematics:

- Kin Ia, golden run monitoring: [5], combined runs missing mass spectra: [6]

• All instructions and reference plots can be found in the black binder in the counting house.

E12-09-011 (Kaon LT)

Kaon-LT Redmine Page

Run plans

• Run plans for all energies on RedMine
• KAON-LT specific instructions for Shift Takers (PDF)
• KAON-LT specific intructions
• KAON-LT analysis instructions
• Kaon LT Run List 8.2 GeV
• Kaon LT Run List 6.2 GeV
• Kaon LT Run List 3.8 GeV
• Kaon LT Run List 4.9 GeV
• Kaon LT Run List 10.6 GeV

RC Links

• RC Daily Meetings and Runplans (Spring 2019)
• RC Daily Meetings and Runplans (Autumn 2018)
• On Call List and Instructions

Kaon-LT Setting Status

• 6.2/8.2 GeV status page
• 3.8/4.9 GeV status page
• 10.6 GeV status page

6.2/8.2 GeV Runplan Overview

PDF file with run plan details: 6.2 GeV, 8.2 GeV

• Beam checkout
• Items to be done as soon as possible at 6.2 GeV AND 8.2 GeV
  • Arc energy measurement
  • BPM calibration check with superharps
• Calibration Runs (HMS/SHMS sieve runs, luminosity scans, heep-check singles and coincidences)
• 6.2 GeV,
  • Q2=3.0 W=2.32 x=0.40 , low ε data taking
  • Q2=2.115 W=2.95 x=0.21 , low ε data taking
• 8.2 GeV,
  • Q2=4.4 W=2.74 x=0.40 , low ε data taking
  • Q2=3.0 W=3.14 x=0.25 , low ε data taking
  • Q2=5.5 W=3.02 x=0.40 , low ε data taking

3.8/4.9 GeV Runplan Overview

PDF file with run plan details: 3.8 GeV, 4.9 GeV

• SHMS beam deflection test plan
  • 3.8 GeV
    • Set SHMS to 6.79 degrees, with all magnets ramped to zero
    • Jay Benesch will execute his beam deflection test plan
    • Shift workers will need to ramp SHMS magnets as directed by Jay (use -3.007 GeV/c settings)
  • 4.9 GeV
    • Jay has agreed to defer the SHMS beam deflection study until we get to the 6.00 deg setting in the run plan, expected to be morning of Dec 17.
• Beam checkout
• Items to be done as soon as possible at 3.8 GeV AND 4.9 GeV
  • Arc energy measurement
  • BCM calibration
  • BPM calibration check with superharps
• Calibration Runs (Heep-check singles and coincidences)
• 3.8 GeV, Q2=0.5, W=2.40, x=0.09, low ε data taking
• 4.9 GeV, Q2=0.5, W=2.40, x=0.09, high ε data taking

10.6 GeV Runplan Overview

PDF file with run plan details: [7]

• SHMS beam deflection test plan
  • Set SHMS to 6.66 degrees, with all magnets ramped to zero
  • Jay Benesch will execute his beam deflection test plan
  • Shift workers will need to ramp SHMS magnets as directed by Jay (use -8.035 GeV/c settings)
• Beam checkout
• Detector checkout
• Trigger checkout
• Items to be done as soon as possible at 10.6 GeV
  • Arc energy measurement
  • BCM calibration
  • BPM calibration check with superharps
• Calibration Runs (Optics, Heep-check singles and coincidences)
• Q2=3.0, W=2.32, x=0.40, high ε data taking
• Q2=2.1, W=2.95, x=0.21, high ε data taking
• Q2=4.4, W=2.74, x=0.40, high ε data taking
• Q2=3.0, W=3.14, x=0.25, high ε data taking
• Luminosity scan
• Q2=5.5, W=3.02, x=0.40, high ε data taking
• Run Plan for Kaon LT 10.6GeV End Game

SIDIS pt experiment E12-09-017 Fall 2018

• Procedures for shift takers
• 4 Pass Run Plan
• 5 pass Run Plan
• Run List

SIDIS CSV experiment E12-09-002

CSV Run Plan

• CSV
• CSV Daily Run Plan - 2018
• CSV Daily Run Plan - 2019
• CSV software

The J/ψ-007 Experiment

CT Experiment (E1206107) Run Plan

• Overview of run plan (pdf file)
• Instructions for monitoring and analysis during shift (txt file)

The 6.4 GeV Run Plan (52 hrs)

• Conditions:

• Run Plan:
  • HMS is detecting electrons and SHMS is detecting protons.
  • Use HMS pion collimator and SHMS collimator.
  • Start with 30uA on lower 6% Carbon, after a 2 hr run, increase to 40 uA and after another 2 hr run move to the upper 6% Carbon and ask for 50 uA.
  • Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 10000 events for LH2 and Carbon

The 10.6 GeV Run Plan (282 hrs)

• Conditions:

• Run Plan:
  • HMS is detecting electrons and SHMS is detecting protons.
  • Use HMS pion collimator and SHMS collimator.

• H(e,e'p) Check

• Q^2 = 14.3 GeV^2 Run Plan
  • Cycle SHMS magnets since raising momentum
  • Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 1000 events each for LH2 and Carbon and take two singles run 30 mins each at the beginning and end of the running on a particular target.
  • For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).

• Q^2 = 11.5 GeV^2 Run Plan
  • Cycle HMS magnets since raising momentum
  • Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut) such that we have 1000 events each for LH2 and Carbon
  • For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).

• Q^2 = 9.5 GeV^2 Run Plan
  • Cycle HMS magnets since raising momentum
  • Keep track of good coincidence physics events (with tight PID cuts and coincidence time cut)
  • For the singles runs the prescale factor on SHMS should be adjusted as needed to get about equal rate in HMS and SHMS (ie equal rates for PS1 and PS4).

F2 Large x runplan: February 2019

F2 Experiment (E12-10-002) L/T measurement Run Plan

• Experts: Simona Malace, Eric Christy
• Expected time: 2 days at 30 muA
• Goal: Measure one epsilon point to better constrain R at large x
• Conditions: ONLY HMS NEEDED. Prescale to 2 kHz, cycle magnets.

F2/EMC Experiment (E12-10-002/E12-10-008) 5 pass Run Plan

• Spokespeople E12-10-002: E. Christy, T. Keppel, S. Malace (contact), I. Niculescu
• Graduate Students E12-10-002: Deb Biswas, Abel Sun, Fernando Araiza Gonzalez
• Spokespeople E12-10-008: J. Arrington, A. Daniel, D. Gaskell (contact), N. Fomin
• Graduate Students E12-10-008: Abishek Karki, Kayla Craycraft

• Conditions:

F2/EMC Production Run Plan:

SHMS Production Run Plan

HMS Production Run Plan

F2/EMC Online Analysis Flow

F2/EMC analysis how-to for shift takers Step 1

F2/EMC analysis how-to for shift takers Step 2

F2/EMC analysis how-to for shift takers Step 3

F2/EMC: Data taken so far

SHMS

HMS

F2/EMC: Other

• Simona's notes

Daily to do list

F2/EMC: Special Tests

• HMS Dipole saturation at 5.7 GeV/c

HMS saturation measurement run plan

• Boiling studies

--> HMS, SHMS: 25 deg, -4.4 GeV/c (E = 10.6 GeV) (we will take data in both spectrometers at the same time)

--> shoot for 0.5 % statistical uncertainty where possible (no less than 0.8 %)

--> Trigger type will be ELREAL (prescale if needed to keep the DAQ rate below 3000 Hz)

Targets/currents:

--> Al: 40 uA

--> LH2: 10, 25, 40, 50, 60, 70, 80 uA

--> LD2: 10, 25, 40, 50, 60, 70, 80 uA

--> C 1.5%: 10, 35, 45, 55, 65 uA

• BCM calibration procedure

[ https://hallcweb.jlab.org/doc-public/ShowDocument?docid=957 ]

• HMS/SHMS saturation tests
  • Run two separate DAQs. For HMS PS2=0 and SHMS PS2=0, rest to -1.
  • Use the optics 1 target
  • Put sieve in HMS and centered sieve in SHMS
  • Maximum current.
  • Set HMS angle to 15 degrees and SHMS angle to 9 degrees.
  • Need to cycle magnets in HMS and SHMS.
  • Want to have 2000 counts in center foil.
  • For HMS the dipole NMR will be adjusted at each setting to give good Ytar versus Yptar.
  • For HMS at 5.9,5.7 and 5.5 have been done before. It is a consistency check. 5.3 and 5.1 will see if dipole needs to be changed.
  • For SHMS , just take data

F2/EMC: Useful Links

RC Links

• RC Daily Meetings
• RC Daily Meetings - Fall 2017/Spring 2018

F2/XEM E-Logs

• Commissioning experiments analysis elog
• F2/EMC/x>1 Analysis E-log

F2/XEM Analysis Meetings

• BlueJeans Meeting Information

To join the Meeting:
https://bluejeans.com/354839810
To join via Room System:
Video Conferencing System: bjn.vc -or-199.48.152.152
Meeting ID : 354839810
To join via phone :
1)  Dial:
   +1.408.740.7256 (United States)
   +1.888.240.2560 (US Toll Free)
   +1.408.317.9253 (Alternate number)
   (see all numbers - http://bluejeans.com/numbers)
2)  Enter Conference ID : 354839810

Deuteron Electro-Disintegration (E12-10-003) Run Plan

• Monitoring/Analysis Instructions During A Shift
• Data RunSheet
• Experts: Werner Boeglin, Mark Jones
• Graduate Student: Carlos Yero
• Expected Time: 6 days at min. of 40 uA
• Goal: Measure D(e,e'p)n cross section at three kinematic settings, where FSI are small
• Conditions: The SHMS will detect electrons and the HMS will detect protons.

• H(e,e'p) Check Run Plan
  • Check the HMS/SHMS spectrometer pointing
  • run with SHMS singles trigger to measure proton absorption in HMS.
  • Trigger PS6=0, rest set to -1. (PS3=4, rest=-1 for proton Abs. runs)
  • Data taking should take about 1 hour.

• Aluminium Dummy Run
  • Correct for scattered events off the Al. cell walls for H(e,e'p)
  • Trigger PS3=0 and rest to -1. (pRE-Scale accordingly to keep rate < 3kHz)
  • Data taking should take about 1 hour.

• D(e,e'p)n Run Plan
  • Calibration run at low missing momentum used as a cross check with existing data
  • Trigger PS6=0 and rest to -1.
  • Data taking should take about 1-2 hours.

• Measure the D(e,e'p)n Cross Section at unexplored high missing momentum kinematics settings
  • Trigger PS6=0 and rest to -1.

• Elastic LH2 delta scan
  • Runs will be 15 minutes.
  • When changing HMS settings , take SHMS singles with PS3=0, rest=-1
  • At 8.5 deg take data with sieve

• Continue to measure the D(e,e'p)n Cross Section at unexplored high missing momentum kinematics settings
  • Trigger PS6=0 and rest to -1.

SIDIS Run Plan

• Detailed run plan
• Instructions_for_monitoring_and_analysis_of_SIDIS_runs_during_shift
• SIDIS run list

Fall 2017 Commissioning Plans

• Information for Shift Takers (2017-2018 Shift Signup)
• Target web page. Target training schedule
• Sign up for hallc_running mailing list. Archive
• Runsheets:
  • First Dec Period
  • Second Dec period
• Update beam schedule Jan 2018
  • Old Dec 2017 Beam Schedule
• Fall 2017 Commissioning Plan
• Commissioning analysis logbook
• Commissioning analysis meetings
• Experts on call
• How-to
• Detector Working Group Biweekly Meeting Agendas
• Wiki Page for Detector Working Group Biweekly Meetings

Spring 2017 KPP run

• KPP Run Plan
  • Hall C KPP Slides (final) [pdf]
• RC daily meetings and daily runplan for KPP
• Logbook entry with pdf of the run sheets.