General MWG Meeting Summary 3/16/20

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PARTICIPANTS

All remote: D. Romanov, G. Huber, J. Arrington, T. Federico, R. Ent, R. Trotta, Y. Furletova, H-W. Lin, S. Kay

SUMMARY NOTES

  • mesonMC works in Geant4
  • mesonMC now includes neutron and Lambda final states
  • crossing angles checked and updated
  • y-cut (0.01,095) has been applied
  • statistical uncertainty table has been checked and updated
  • mesonMC script for large number of bins has been generated
  • Found that run into problems when running/transferring large files within the global EIC software framework - fixed by making a new version that allows to run the analysis more centrally
  • Detection fractions
  • for proton almost 100%
  • for neutron: have the data, but still need to analyze
  • for K/Lambda: seems that not all Lambdas decay properly - note that if it doesn't decay it will seem to have a good detection fraction since close to proton in mass. Also, the fraction of Lambdas that doesn't decay would likely be misidentified as (heavy) neutrons.
  • Virtual planes are ready - working on analysis chain with reconstruction for K-Lambda, also need to understand decay for this
  • Overall Comments for Structure:
  • Take 1-2 examples from the EPJA paper, e.g. pion SF and pion FF and explain implications for detectors, e.g. need detection fraction, which affects forward detector design, and need calorimetry for large-x resolution
  • Show kinematics for scattered electron, e.g. momentum/angular distribution and point out ongoing work on plugins for simulation, i.e. demonstrate how the analysis chain works
  • Include a timeline of meetings that took place and that are planned for the next months
  • Specific comments:
  • Split the neutron and Lambda final states into two slides - different detector requirements for each, KLambda is new for many people
  • Beam energies: general concept is to take fixed luminosity and look what is doable at the extremes
  • make clear that pi0 is not for meson SF studies but for systematic checks
  • Note that for KLambda need to reconstruct the particle
  • Include slide on Jupyter details in backup for reference
  • Adjust crossing angle in the DEMP studies - make new plots


ACTION ITEMS

  • Complete the slides for the EIC meeting and circulate
  • Ask for a 5-min presentation on meson SF in the joint PWG+DWG session
  • Figure out detection fraction for KLambda
  • Continue work on analysis chain including KLambda
  • Is there a meeting time that allows people from more time zones to participate?


NEXT MEETING: MONDAY MARCH 30 at 4:00PM (ET)

NEXT WORKING MEETING: MONDAY APRIL 13 (all day, remote meeting)

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