Performance of the Barrel DIRC as a function of the polar and the azimuthal angle for design with 11 and 8 MCPs.
- PandaRoot simulations without field
- pions and kaons @ 3.5 GeV/c
- 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
- 0.1 ns time precision
- standard wavelength QE
- spatial QE = 1
- athimuthal angle covers 1.5 bars (from the edge to the middle of the barbox)
11MCPs with geometrical reco:
8MCPs with geometrical reco:
11MCPs with time imaging reco:
8MCPs with time imaging reco:
Difference for geometrical reco (11 MCPs - 8 MCPs):
Difference for time imaging reco (11 MCPs - 8 MCPs):
=> 11 MCP design is slightly better, especially for side bars.