Performance of the Barrel DIRC as a function of the polar angle and momentum for a design with 3 layer spherical lens and 8 MCP-PMTs layout.
- PandaRoot simulations without field
- configuration with narrow bars, 3 layer spherical lens, and 8 MCPs layout with ~17 mm gap
- pions and kaons @ phi = 10.825 deg
- geometrical reconstruction with 2M LUT
- time-imaging reconstruction with full-simulated pdfs
- 30k tracks for pdf generation (per each particle species); 5k for determining separation
- ~2 mrad tracking resolution
- realistic time precision
- standard wavelength QE+0.65 collection efficience vs. HIQ400 + 0.95 CE. See QE curves
- spatial QE = 1
Time imaging reconstruction with standard QE:
Time imaging reconstruction with HIQ 400:
Geometrical reconstruction with standard QE:
Geometrical reconstruction with HIQ400:
Example of the Cherenkov angle distribution for a low performance region (1 GeV/c, 100 deg)
Kaon's photon yield with standard QE:
Kaon's photon yield with HIQ400:
Pion's photon yield with standard QE:
Pion's photon yield with HIQ400:
Photon yield and separation power using time imaging @ 3.6 GeV/c:
