Charged Particle Veto Detector for the PHOS Spectrometer

The general design of the Charged Particle Veto (CPV) detector for the photon spectrometer (PHOS) of the ALICE experiment along with beam test results of the CPV prototype in 1998 are presented

CASTOR detector: Model, objectives and simulated performance

We present a phenomenological model describing the formation and evolution of a Centauro fireball in the baryon-rich region in nucleus-nucleus interactions in the upper atmosphere and at the LHC. The small particle multiplicity and imbalance of electromagnetic and hadronic content characterizing a Centauro event and also the strongly penetrating particles (assumed to be strangelets) frequently accompanying them can be naturally explained. We describe the CASTOR calorimeter, a subdetector of the ALICE experiment dedicated to the search for Centauro in the very forward, baryon-rich region of central Pb+Pb collisions at the LHC. The basic characteristics and simulated performance of the calorimeter are presented. (22 refs)