Pion Meeting May 14 2021 11AM ET

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• Bluejeans link: 420 107 252
• Dial-in: 408-740-7256 (US), 888-240-2560 (US Toll Free), 408-317-9253 (Alternate number)

Agenda

1. Updates on pion detector studies (Elham)
2. Beam generator simulations (Raj)

Attendance

Elham, David, Raj, Wouter

Minutes

1. Changing donut lead outer sleeve to air and stainless:
   1. no change for air, but reduction in rate in lucite detector for stainless, both for high and low energy electrons
   2. radial and azimuthal distribution of hits on showermax detector
      1. TODO: color density plot to make clearer what is going on
      2. TODO: overlay the xy extent of showermax detector on this plot
      3. TODO: move showermax plane just upstream of both showermax detectors
      4. TODO: require that the hit in 31 was a primary electron
      5. TODO: make plot for stuff moving upstream versus stuff moving downstream (stuff moving upstream will not reach pion detector)
      6. TODO: make same plot without the lucite requirement, as a comparison (may look identical)
      7. TODO: create phi plot with selection of one specific pion detector
      8. TODO: create phi plot with finer binning, or binning aligned to 360/7 symmetry (not 20 deg/bin, but e.g. 360/7/20 deg/bin)
      9. TODO: run with both sleeves set to air and/or stainless steel
   3. azimuthal distribution at pion detector plane: effect of scattering off the floor (but needs radial extent)
      1. TODO: add radial extent, requirement on hit.r that it is in the pion detector
   4. shielding for main detector PMTs is not in the simulation
2. Reverse Monte Carlo???
3. TODO: compare beam generator and Moller generator again