HDGeant4 Meeting, August 24, 2021

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HDGeant4 Meeting
Tuesday, August 24, 2021
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, Mark Ito (chair), Igal Jaegle, Richard Jones, Alec Mason, Simon Taylor, Beni Zihlmann

There is a recording of this meeting on the BlueJeans site. Log into the BlueJeans site first to gain access (use your JLab credentials).


Today, pull request tests have been failing due to a missing RPM on sandd1.jlab.org, where the tests run. hdgeant4 could not find one of its shared libraries. Mark submitted a request to have the boost-python36-devel package installed.

Review of minutes from the last meeting

We went over the minutes from the meeting on August 10. We discussed Issue #181: G3/G4 Difference in FDC wire efficiency at the cell boundary. Alex has posted his efficiency measurement on bggen events. Using an old version of the reconstruction code, he shows a similar difference in efficiency when compared to simulated ρ events as Richard showed with modern reconstruction.

We came to the conclusion that further investigation was getting into the region of diminishing marginal returns and the changes already made to mcsmear are a bit advance over what we had before. Alex will close this issue. If further investigation turns out to be necessary, the issue can be re-raised for the halld_sim repository.