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Author(s)
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Agocs, A (Budapest, RMKI) ; Alfaro, R (Mexico U.) ; Barnafoldi, G G (Budapest, RMKI) ; Boldizsar, L (Budapest, RMKI) ; Cuautle, E (Mexico U., ICN) ; De Cataldo, G (Bari U. ; INFN, Bari) ; Di Bari, D (Bari U. ; INFN, Bari) ; Di Mauro, A (CERN) ; Dominguez, I (Mexico U., ICN) ; Fodor, Z (Budapest, RMKI) ; Futo, E (Budapest, RMKI) ; Garcia, E (Chicago State U.) ; Hamar, G (Budapest, RMKI) ; Harris, J W (Yale U.) ; Levai, P (Budapest, RMKI) ; Martinengo, P (CERN) ; Mayani, D (Mexico U., ICN) ; Molnar, L (Budapest, RMKI) ; Nappi, E (Bari U. ; INFN, Bari) ; Ortiz, A (Mexico U., ICN) ; Paic, G (Mexico U., ICN) ; Perini, D (CERN) ; Perrino, D (Bari U. ; INFN, Bari) ; Peskov, V (Mexico U., ICN) ; Piuz, F (CERN) ; Smirnov, N (Yale U.) ; Varga, D (Eotvos U.) ; Volpe, G (Bari U. ; INFN, Bari) |
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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 (pT) trigger for this detector. The first option is a RICH design with a C4F10 gas UV-photon radiator, UV-mirror, quartz window and pad-readout. This design requires additional tracking detectors to enable high pT triggering. A second option is a combination of three detectors: a RICH with CF4 gas both as a UV-photon radiator and as a gas amplification medium (a windowless approach); and a threshold Cherenkov detector (C4F10) 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 pT triggering. The simulation includes UV-photon production due to CF4 scintillation. |