[Nps] Minutes from the RG1a NPS analysis meeting of July 3, 2024

[Carlos Munoz Camacho]

*Minutes from the RG1a NPS analysis of July 3, 2024*

*Meeting Recording: *
https://jlab-org.zoomgov.com/rec/share/Npd4ZGnny4jtsjePMIFA2ClCNGFsLv98lfIRbi4AHC-_uoVkvPHJ9G3_wrxEwcXi.rr6SOGJD9rglbizt
Passcode: X1$bTeP?

Josh (slides at
https://hallcweb.jlab.org/elogs/NPS-RG1a-Analysis/240702_183320/Run_List_Status_7-2-24.pdf
)
===========

   - Presented the status of the run list.
   - Basic identifiers for good/bad criteria were discussed. They are
   currently obtained from automatic scripts (do not rely on manual logging).
   - Discussed Peter's run list, which primarily uses scaler data as
   criteria, but not only.
   - Discussion on formatting of the list and possible addition of extra
   columns to the file (discussion to be continued).


Avnish (slides at
https://hallcweb.jlab.org/elogs/NPS-RG1a-Analysis/240703_010443/NPS_RG1_analysis_Jul3_23.pdf
)
============

   - Presented status of the HMS DC calibration
   - Discussion on what other detectors should be calibrated first (C.
   Yero's technical note or thesis are a good reference as a starting point:
   see, e.g.,
   https://hallcweb.jlab.org/DocDB/0010/001032/001/analysis_notes.pdf).
   - Once other detectors and time cuts are optimized, this will be redone.
   - Calibration will need to be done several times during the run period.


Yaopeng (slides at
https://hallcweb.jlab.org/elogs/NPS-RG1a-Analysis/240703_040917/DC_Calibration_Updates_July_03.pdf
)
============

   - Presented also DC calibration results.
   - The same main conclusions apply (see Avnish's talk).


Casey
=============

   - Discussed how to use hcana in ifarm using a common software version
   for everyone.
   - He will post instructions in the wiki.


Hao (slides at
https://hallcweb.jlab.org/elogs/NPS-RG1a-Analysis/240703_073201/20240703_Status_of_the_calibration_for_NPS.pdf
)
==============

   - Presented the status of the pi0 calibration.
   - A few minor issues are still under analysis.
   - The required frequency of calibrations will be investigated.
   - The focus now is on developing the procedure; calibrations will need
   to be redone once waveform analysis on calorimeter data is performed.


Wassim (slides at
https://hallcweb.jlab.org/elogs/NPS-RG1a-Analysis/240703_095221/Neutron_Peak.pdf
)
===============

   - Presented the status of the pi0 and DVCS missing mass distributions
   after waveform analysis.
   - Normalized LD2-LH2 distributions are presented.
   - The (LD2-LH2) DVCS missing mass distribution shows a higher number of
   events than LH2 alone, which would be surprising if real — probably related
   to the LH2 target density issue.

.
The next meeting will be on Thursday, July 11 at 4PM ET:

https://jlab-org.zoomgov.com/j/1618547387?pwd=S1BmQ1cwZFBYV3l5TnArK3hCaUZwQT09
Meeting ID: 161 854 7387
Passcode: 031040
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