hit pattern vs propagation time

Hit pattern as a function of 100ps cut on propagation time. Featuring configuration with 50cm wide and 4 cm thick plate as EV (EV-plate-SL-bars).

  • 3-layer spherical lens with sapphire, r=[62,36] vs ideal lens
  • 16x16 pixels MCP-PMTs with HIQ400, CE=95%
  • pions @ 6 GeV/c; phi = 0 (no field); theta = 30 deg; vertex y-shifted by 0.5*barwidth (to hit middle of the bar)
  • 0.5 mrad tracking
  • 100 ps time precision
  • geometrical reconstruction with averaged LUT from 15M photons
  • GR with per-PMT and chromatic corrections
  • 20k tracks for pdf generation (per each particle species); 5k for determining separation