HDGeant4 Meeting, August 25, 2020

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HDGeant4 Meeting
Tuesday, August 25, 2020
3:00 pm EDT
BlueJeans: 968 592 007


  1. Announcements
  2. Review of minutes from the last meeting (all)
  3. Issues on GitHub
  4. Pull Requests on GitHub
  5. Action Item Review


Present: Alex Austregesilo, Sean Dobbs, Mark Ito (chair), Naomi Jarvis, Richard Jones, Mahmoud Kamel, Susan Schadmand, Simon Taylor, Nilanga Wickramaarachchi

There is a recording of this meeting on the BlueJeans site. Use your JLab credentials to get access.

Review of minutes from the last meeting

We went over the minutes from August 11.

  • We have yet to follow up with Elton on Issue #167 (G4 exceptions for certain run numbers). Mark will contact him.
  • We are waiting for feedback from Colin on Issue #111 (Difference in Acceptance between G3 and G4).
  • On Issue #173 (Negative counts on eta invariant mass spectrum for 2017 simulation), Mahmoud reported that he has been working with Justin Stevens and they have a solution. From Mahmoud's issue-closing message:

In my code I have double uniqueness tracking, one on the missing mass, and the other on the final state photons only, which is not a correct approach to use with the accidental subtraction.

Possible Future Issues

Sean remarked that there are some discrepancies appearing in the studies from the Particle ID working group when comparing data to Monte Carlo. At some point these may be logged as HDGeant4 issues when they are better understood.