start time resolution

Start time resolution obtained using only "dirc" information

  • DIRC@EIC design; 11 bars; 4x6 MCP-PMT array; 3-layer sperical lens with nlak33
  • 3 mm pixels (Photonis 2 (CE=95%, QE=22%))
  • 100 ps time precision
  • pions/kaons @ 6 GeV/c

For 20 mrad:

Corresponding photon yield:

Examples of event-by-event start time search (@ 30 degree polar angle):

Examples of event-by-event start time search (@ 80 degree polar angle):