July 27, 2016 Calibration

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GlueX Calibration Meeting
Wednesday, July 27, 2016
11:00 am, EST
JLab: CEBAF Center, F326

Communication Information

Remote Connection

You can connect using BlueJeans using the meeting number 630 804 895 .       (Click "Expand" to the right for more details -->):

  1. Make sure you have created a BlueJeans account via your JLab CUE account using this link:

  2. Meeting ID: 630804895
    • (you may need to type this in, depending how you connect)

  3. If connecting via Web Browser: click this link (no passcode is needed):

  4. If connecting via iOS or Android App:
    • Use your JLab e-mail address to log in and then enter the meeting ID given above to join the meeting

  5. If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"

  6. If connecting via Polycom unit:
    • Dial or bjn.vc
    • Enter meeting ID above
    • Use *4 to unmute


Talks can be deposited in the directory /group/halld/www/halldweb/html/talks/2016 on the JLab CUE. This directory is accessible from the web at https://halldweb.jlab.org/talks/2016/ .

Calibration Tasks

  1. Spring 2016 Recon Checklist
  2. Mcsmear updates - mcsmear 20160323
  3. Data Validation
  4. GlueX Detector Performance Document


  1. Announcements
  2. Next Monitoring Run?
  3. Detector updates
  4. Simulations
    • sim1.1 for data/simulation matching studies (Sean/Mark I.)
    • Mcsmear updates
  5. AOB


Attendees: Simon T., Alex B., Justin S., Curtis M., Will M., Nacer, Alex A???, Mark I., Mark D., Luke R., Eugene C., Beni Z.

  • The next monitoring pass awaits changes to the tracking code by Simon T. Changes to the BCAL reconstruction are probably not going to be ready for a month or two.
    • We typically run over the first 5 files of each run -- Beni is working on possibly reconfiguring the TOF time-walk correction, but he needs much more data (maybe 40 files/run). We can use the monitoring pass to check any changes.
  • The first analysis pass over the data is imminent; waiting for some plugin cleanup.
  • BCAL: Will M. has made progress in matching MC energy/timing response to real data.
  • TOF: Beni is working on efficiencies
  • Tagger: Nathan and Alex B. are working on clusterization of hits.
  • Alex B. warned not to require the TAGM TDC for early runs -- does not affect REST files.
  • Many groups (TOF, Tagger, BCAL) will need channel-by-channel discriminator thresholds - Alex S. is aware...
  • The latest simulation pass (sim1.1) has been completed, 8000 jobs with 25000 events each = ~1% of amount of the real data. Information about the simulation can be found here