[Halld-pid] Start Counter Meeting Minutes, October 18, 2018

[Mark Ito]

Folks,

Please find the minutes below and at this link 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_October_18,_2018#Minutes>.

   -- Mark

_____________________________________


    Minutes, GlueX Start Counter Meeting, October 18, 2018

Present:

  * *FIU: * Werner Boeglin, Mahmoud Kamel
  * *FSU: * Sean Dobbs
  * *JLab: * Thomas Britton, Mark Ito (chair), Simon Taylor, Beni Zihlmann

There is a recording of this meeting <https://bluejeans.com/s/gyEw8> on 
the BlueJeans site <https://jlab.bluejeans.com/>. Use your JLab 
credentials to authenticate.


      Review minutes from the meeting on September 20

We went over the minutes 
<https://halldweb.jlab.org/wiki/index.php/GlueX_Start_Counter_Meeting,_September_20,_2018#Minutes>. 
Regarding the simulations that Sean had announced last time, Mahmoud 
used them in his presentation at the last collaboration meeting in the 
section on comparison between data and Monte Carlo.


      Calibration and Efficiency

Mahmoud has checked the start counter time resolution for run 50799 of 
the current run period. The resolution is nominal at around 300 ps.


      Work Packages

We reviewed the PID section of the Work Packages 
<https://halldweb.jlab.org/wiki-private/index.php/2018_Work_Packages> 
wiki page.

  * As mentioned at the last TOF meeting, there still is a place for the
    detector working groups to develop raw quantities, such as timing
    information, that can be used to form higher level quantities used
    for particle identification.
  * There are issues remaining in this working group.
      o Sean: quantifying detector response as a function of location in
        phase space and capturing those measurements in the simulation
        and reconstruction.
      o Werner: transmission of Mahmoud's expertise in calibration and
        performance measurement to new students.
      o Geometrical alignment studies.
      o Refinement of comparisons between simulation and data.
  * Need for a new particle identification working group.
      o Effort is needed to formalize how we combine PID info from
        various detector systems on a collaboration-wide basis.
      o Mark: this effort could be folded into a work package of the
        software working group.
      o Thomas: when bringing new students into say π/K ID efficiency
        and fake rates, existing detector working groups not
        appropriate. The discussion there is much lower level.
      o Werner: there are three new grad students from FIU, candidates
        for getting plugged in
      o Sean: a dedicated meeting of a new group would be best to
        address this issue.
      o Werner: it would be best for a JLab person to convene a new
        working group. That provides centrality, collaboration-wise, and
        continuity.
      o Thomas and Mark will discuss working-group-convening
        responsibilities.


      NIM Paper

Eric Pooser has produced a new draft incorporating comments from Beni 
and Elton Smith. This is good progress. Mark will distribute the draft 
to those who commented on the previous draft. This draft has been 
shortened; more edits are probably needed.

Retrieved from 
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  * This page was last modified on 21 October 2018, at 14:27.

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