Particle identification with the RICH detector in experiment WA89 at CERN Article uri icon

abstract

  • The RICH detector in the hyperon beam experiment WA89 at the CERN-SPS is used for identification of π, K and p/p out of Σ--N reactions. Methods for reduction of charged particle background in the detector are discussed. An algorithm for particle identification was developed and tested on a sample of Λ → pπ decays. A separation of p and π with 90%25 efficiency and a rejection by a factor of 10 or more at a momentum of 150 GeV c was achieved. © 1994.

publication date

  • 1994-01-01