Author/Authors :
Adam and Sivertz، نويسنده , , M and Berger، نويسنده , , B.E and Ehrlich، نويسنده , , R.D and Bartelt، نويسنده , , J and Csorna، نويسنده , , S.E and Jain، نويسنده , , V and Marka، نويسنده , , S and Kinoshita، نويسنده , , K and Pomianowski، نويسنده , , P، نويسنده ,
Abstract :
We discuss the design and performance of a threshold Cherenkov counter for identification of charged hadrons. The radiator is pressurized gas, which is contained in thin-walled cylindrical modules. A mirror system of novel design transports Cherenkov photons to photomultiplier tubes. This system is compact, contains relatively little material, and has a large fraction of active volume. A prototype of a module designed for the proposed CLEO III detector has been studied using cosmic rays. Results from these studies show good agreement with a detailed Monte Carlo simulation of the module and indicate that it should achieve separation of pions and kaons at the 2.5σ–3.0σ level in the momentum range 0.8−2.8 GeVc. We predict performance for specific physics analyses using a GEANT-based simulation package.
