Author/Authors :
Agocs، نويسنده , , A. and Alfaro، نويسنده , , R. and Barnafoldi، نويسنده , , G.G. and Boldizsar، نويسنده , , L. and Cuautle، نويسنده , , E. and De Cataldo، نويسنده , , G. and Di Bari، نويسنده , , D. and Di Mauro، نويسنده , , A. and Dominguez، نويسنده , , I. and Fodor، نويسنده , , Z. and Futo، نويسنده , , E. and Garcia، نويسنده , , Sahar E. Abo-Hamar، نويسنده , , G. and Harris، نويسنده , , J.W. and Levai، نويسنده , , P. and Martinengo، نويسنده , , P. and Mayani، نويسنده , , D. and Molnar، نويسنده , , L. and Nappi، نويسنده , , E. and Ortiz، نويسنده , , A. and Paic، نويسنده , , G. and Perini، نويسنده , , D. and Perrino، نويسنده , , D. and Peskov، نويسنده , , V. and Piuz، نويسنده , , F. and Smirnov، نويسنده , , N. and Varga، نويسنده , , D. and Volpe، نويسنده , , G.، نويسنده ,
Abstract :
We propose to construct and install a limited acceptance detector to identify hadrons (pions, K, p) up to 30 GeV/c on a track-by-track basis in space available in ALICE. Details and PID performance simulation results will be presented for two possible options, including a high transverse momentum ( p T ) trigger for this detector. The first option is a RICH design with a C 4 F 10 gas UV-photon radiator, UV-mirror, quartz window and pad-readout. This design requires additional tracking detectors to enable high p T triggering. A second option is a combination of three detectors: a RICH with CF 4 gas both as a UV-photon radiator and as a gas amplification medium (a windowless approach); and a threshold Cherenkov detector ( C 4 F 10 ) with a quartz window and pad readout. The response for minimum ionizing particles (MIP) and UV-photons in these detectors can be well separated. With an additional tracking detector this design will also provide high p T triggering. The simulation includes UV-photon production due to CF 4 scintillation.
