Difference between revisions of "GlueX Offline Meeting, February 22, 2012"

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===Calorimeters===
 
===Calorimeters===
  
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Will gave a summary of his work thus far characterizing photon reconstruction in <math>b_1\pi</math> events. See [[Photon Reconstruction in b1pi events 02/10/2012|his wiki page]] for details and plots. He studied the BCAL and FCAL separately. In the BCAL he sees about a factor of three more photons reconstructed than thrown but a simple timing cut eliminates most of the spurious reconstructed photons, leaving the right number and a reasonable energy spectrum. Likewise in the FCAL there is a similar multiplication in photons from generated to reconstructed, but timing only removes half of the total (a larger factor is desired). Will is investigating these issues further.
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Will gave a summary of his work thus far characterizing photon reconstruction in <math>b_1\pi</math> events. See [[Photon Reconstruction in b1pi events 02/10/2012|his wiki page]] for details and plots. He studied the BCAL and FCAL separately. In the BCAL he sees about a factor of three more photons reconstructed than thrown but a simple timing cut eliminates most of the spurious reconstructed photons, leaving the right number and a reasonable energy spectrum. In the FCAL there is a similar multiplication in photons from generated to reconstructed, but timing only removes half of the total (a larger factor is desired). Will is investigating these issues further.
  
 
===Tracking===
 
===Tracking===

Revision as of 17:50, 22 February 2012

GlueX Offline Software Meeting
Wednesday, February 22, 2012
1:30 pm EST
JLab: CEBAF Center F326

Agenda

  1. Announcements
    1. Single-track jobs running: Simon, Mark
  2. Review of minutes from the last meeting: all
  3. Reconstruction sub-group reports
    1. Calorimeters
    2. Tracking
    3. PID
  4. Offline Software Review Planning
  5. Reconstruction Output Format: all
  6. EventStore
  7. Action Item Review
  8. Review of recent repository activity: all

Communication Information

Video Conferencing

Slides

Talks can be deposited in the directory /group/halld/www/halldweb1/html/talks/2012-1Q on the JLab CUE. This directory is accessible from the web at https://halldweb1.jlab.org/talks/2012-1Q/ .

Minutes

Present:

  • CMU: Will Levine, Curtis Meyer
  • FSU: Nathan Sparks
  • IU: Ryan Mitchell, Kei Moriya, Matt Shepherd
  • JLab: Mark Ito (chair), Simon Taylor, Beni Zihlmann

Announcements

Simon and Mark reported that single-charged-track diagnostic jobs are now running nightly on an ifarm machine at JLab. The success probability is still a bit low (due to Computer Center controls of multiple jobs) and adjustments will have to be made, but some results can be seen at the top-level web page.

Review of minutes from the last meeting

We reviewed the minutes from the previous meeting, from before the collaboration meeting, without significant comment.

Reconstruction sub-group reports

Calorimeters

Will gave a summary of his work thus far characterizing photon reconstruction in b_{1}\pi events. See his wiki page for details and plots. He studied the BCAL and FCAL separately. In the BCAL he sees about a factor of three more photons reconstructed than thrown but a simple timing cut eliminates most of the spurious reconstructed photons, leaving the right number and a reasonable energy spectrum. In the FCAL there is a similar multiplication in photons from generated to reconstructed, but timing only removes half of the total (a larger factor is desired). Will is investigating these issues further.

Tracking

Reconstruction Output Format: all

EventStore

Simon made a change to the track finding code for the cdc, see his message

random access needs to be explored 10's of TB level at cleo-c access to large amount of disk space

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