[Halld-cpp] CPP Software meeting minutes 1/27/2022

[David Lawrence]

Hi All,

  Minutes from last week’s CPP software meeting are now posted:

https://halldweb.jlab.org/wiki/index.php/%CE%A0_polarizability_Software_Meeting_Jan_27,_2022<https://halldweb.jlab.org/wiki/index.php/Π_polarizability_Software_Meeting_Jan_27,_2022>


Minutes[edit<https://halldweb.jlab.org/wiki/index.php?title=%CE%A0_polarizability_Software_Meeting_Jan_27,_2022&action=edit&section=5>]
Attendees: David L., Mark I., Simon T., Andrew S., Albert F., Nikhil K., Elton S.

  1.  Tracking
     *   Extrapolations to FMWPC complete (Simon)
     *   Other modifications to tracking to support CPP are completed. We are unaware of any other modifications that will be needed.

  2.  FMWPC reconstruction
     *   Some code in place that Sean apparently copied from CDC. Needs to be followed up on and items created in CCDB.
     *   Some discussion over the options David showed at the CPP meeting earlier in the week<https://docs.google.com/presentation/d/1HkMlIgEzZaNuDpH__7YXINmNYZvc78gLoMUoosmbWjs/edit?usp=sharing>
     *   May need to pursue both as some work has been done on each option already and it is unclear which will be the best.
  3.  CTOF - (scintillator behind FMWPC)
     *   Simon has implemented as classes in FMWPC library

  4.  FCAL
     *   Simon has added track matched single block hits that are not associated with any shower to the REST file format.
     *   This allows analysis of these hits which may be due to MIP particles later.

  5.  Pending Pull Request
     *   Mark had noted that there is a pending PR on GitHub for the CPP branch where many changes have been made. Recent changes David committed to the branch are now automatically added to the PR
     *   Some review items had been entered by Sean and Simon has already address.
     *   Mark contacted Sean during the meeting to check if he was satisfied with all of the changes. He responded during the meeting that he was OK for the PR to proceed.
     *   Some further delay to make sure recent changes David entered since then are OK. (I cannot recall who, if anyone, volunteered to actually accept the PR).

  6.  Monitoring
     *   Elton noted that the current FMWPC_online plugin does not produce anything for simulated data
     *   This is due to it being a skeleton set up to only look at DFMWPCDigiHit objects where are not present in MC data.
     *   David volunteered to add some histograms for the calibrated hits (DFMWPCHit) so it can be used for MC data as well. This will also be needed for monitoring during the full experiment.

  7.  e+e- PID
     *   Some discussion over adding e+e- code that can be used to identify e+e- events using some of the machinery Andrew has developed.
     *   Not clear whether it should be implemented as a JANA factory or in something downstream of DReactionFilter. Andrew will look and consider.

  8.  Next Meeting
     *   David will set up a Doodle poll to identify a weekly meeting time. This may drop to Bi-weekly after we get more momentum.


Regards,
-David

-------------------------------------------------------------
David Lawrence Ph.D.
Staff Scientist - - EPSCI Group Lead
Thomas Jefferson National Accelerator Facility
Newport News, VA
davidl at jlab.org<mailto:davidl at jlab.org>
(757) 269-5567 W
(757) 746-6697 C


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