momentum scan for 32x32 pixels PMT

  • DIRC@EIC, EPIC
  • 3-layer spherical lens with sapphire, r=[62,36] vs ideal lens
  • 32x32 pixels MCP-PMTs with HIQ400, CE=95%
  • pions and kaons @ [6-18] 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

For 3-layer spherical lens. 30 degree polar angle.

Photon yield without any cuts:

SPR:

GR:

TI:

For ideal lens.

SPR:

GR:

TI:

Per-angle plots (3-layer spherical lens):