[Halld-offline] HDGeant4 Meeting Minutes, August 24, 2021

[Mark Ito]

Folks,

Please find the minutes here 
<https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_August_24,_2021#Minutes> 
and below.

   -- Mark

      ______________________________


    HDGeant4 Meeting, August 24, 2021, Minutes

Present: Alex Austregesilo, Mark Ito (chair), Igal Jaegle, Richard 
Jones, Alec Mason, Simon Taylor, Beni Zihlmann

There is a recording of this meeting 
<https://bluejeans.com/s/uIHqcNaaJt2/> on the BlueJeans site. Log into 
the BlueJeans site <https://jlab.bluejeans.com> first to gain access 
(use your JLab credentials).


      Announcements

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 
<https://halldweb.jlab.org/wiki/index.php/HDGeant4_Meeting,_August_10,_2021#Minutes>. 
We discussed Issue #181 
<https://github.com/JeffersonLab/HDGeant4/issues/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.

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