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Title	R&D on high momentum particle identification with a pressurized Cherenkov radiator
Author(s)	Agócs, A G (Wigner RCP, Budapest) ; Barile, F (Bari U. ; INFN, Bari) ; Barnaföldi, G G (Wigner RCP, Budapest) ; Bellwied, R (Houston U.) ; Bencédi, G (Wigner RCP, Budapest) ; Bencze, G (Wigner RCP, Budapest) ; Berényi, D (Wigner RCP, Budapest) ; Boldizsár, L (Wigner RCP, Budapest) ; Chattopadhyay, S (Saha Inst.) ; Chinellato, D D (Houston U.) ; Cindolo, F (Salerno U.) ; Cossyleon, K (Chicago State U.) ; Das, D (Saha Inst.) ; Das, K (Saha Inst.) ; Das-Bose, L (Saha Inst.) ; De Cataldo, G (Bari U. ; INFN, Bari) ; Di Bari, D (Bari U. ; INFN, Bari) ; Di Mauro, A (CERN) ; Futó, E (Wigner RCP, Budapest) ; Garcia-Solis, E (Chicago State U.) ; Hamar, G (Wigner RCP, Budapest) ; Harton, A (Chicago State U.) ; Jayarathna, S P (Houston U.) ; Jimenez, R T (Mexico U., ICN) ; Kim, D W (Gangneung-Wonju Natl. U.) ; Kim, J S (Gangneung-Wonju Natl. U.) ; Knospe, A (Texas U.) ; Lévai, P (Wigner RCP, Budapest) ; Markert, C (Texas U.) ; Martinengo, P (CERN) ; Molnar, L (Wigner RCP, Budapest ; CERN) ; Nappi, E (Bari U. ; INFN, Bari) ; Oláh, L (Eotvos U.) ; Paić, G (Mexico U., ICN) ; Pastore, C (Bari U. ; INFN, Bari) ; Patino, M E (Mexico U., ICN) ; Peskov, V (Mexico U., ICN ; CERN) ; Pinsky, L (Houston U.) ; Piuz, F (CERN) ; Piyarathna, D B (Houston U.) ; Pochybová, S (Wigner RCP, Budapest) ; Sgura, I (Bari U. ; INFN, Bari) ; Sinha, T (Saha Inst.) ; Song, J (Pusan Natl. U.) ; Timmins, A (Houston U.) ; Van Beelen, J B (CERN) ; Varga, D (Wigner RCP, Budapest ; Eotvos U.) ; Volpe, G (CERN) ; Weber, M (Houston U.) ; Xaplanteris, L (Texas U.) ; Yi, J (Pusan Natl. U.) ; Yoo, I -K (Pusan Natl. U.)
Publication	2014
Number of pages	4
In:	Nucl. Instrum. Methods Phys. Res., A 766 (2014) 92-95
In:	8th International Workshop on Ring Imaging Cherenkov Detectors, Hayama, Kanagawa, Japan, 2 - 6 Dec 2013, pp.92-95
DOI	10.1016/j.nima.2014.04.019
Subject category	Detectors and Experimental Techniques
Abstract	We report on the R&D; results for a Very High Momentum Particle Identification (VHMPID) detector, which was proposed to extend the charged hadron track-by-track identification in the momentum range from 5 to 25 GeV/ c in the ALICE experiment at CERN. It is a RICH detector with focusing geometry using pressurized perfluorobutane (C 4 F 8 O) as a Cherenkov radiator. A MWPC with a CsI photocathode was investigated as the baseline option for the photon detector. The results of beam tests performed on RICH prototypes using both liquid C 6 F 14 radiator (in proximity focusing geometry for reference measurements) and pressurized C 4 F 8 O gaseous radiator will be shown in this paper. In addition, we present studies of a CsI based gaseous photon detector equipped with a MWPC having an adjustable anode–cathode gap, aiming at the optimization of the chamber layout and performance in the detection of single photoelectrons.
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