ALICE is an LHC experiment devoted to the study of strongly interacting matter in proton-proton, proton-nucleus and nucleus-nucleus collisions at ultra-relativistic energies. The ALICE VZERO system, made of two scintillator arrays at asymmetric positions, one on each side of the interaction point, plays a central role in ALICE. In addition to its core function as a trigger source, the VZERO system is used to monitor LHC beam conditions, to reject beam-induced back- grounds and to measure basic physics quantities such as luminosity, particle multiplicity, centrality and event plane direction in nucleus-nucleus collisions. After describing the VZERO system, this publication presents its performance over more than four years of operation at the LHC.

Performance of the ALICE VZERO system

ARNALDI, Roberta;BALA, RENU;BEOLE', Stefania;BERZANO, DARIO CARLO DOMENICO;BIANCHI, LIVIO;BOTTA, Elena;BRUNA, ELENA;BUFALINO, STEFANIA;CORRALES MORALES, YASSER;FERRETTI, Alessandro;GAGLIARDI, Martino;GALLIO, Mauro;INNOCENTI, GIAN MICHELE;MASERA, Massimo;MILANO, LEONARDO;RAMELLO, Luciano;RUSSO, RICCARDO;SCOMPARIN, ENRICO;SITTA, Mario;VALLERO, Sara;VERCELLIN, Ermanno;
2013-01-01

Abstract

ALICE is an LHC experiment devoted to the study of strongly interacting matter in proton-proton, proton-nucleus and nucleus-nucleus collisions at ultra-relativistic energies. The ALICE VZERO system, made of two scintillator arrays at asymmetric positions, one on each side of the interaction point, plays a central role in ALICE. In addition to its core function as a trigger source, the VZERO system is used to monitor LHC beam conditions, to reject beam-induced back- grounds and to measure basic physics quantities such as luminosity, particle multiplicity, centrality and event plane direction in nucleus-nucleus collisions. After describing the VZERO system, this publication presents its performance over more than four years of operation at the LHC.
2013
8
P10016
P10016
http://arxiv.org/abs/1306.3130
Large detector-systems performance; Trigger detectors; Large detector systems for particle and astroparticle physics; Heavy-ion detectors
B. Abelev; J. Adam; D. Adamová; A.M. Adare; M.M. Aggarwal; G. Aglieri Rinella; M. Agnello; A.G. Agocs; A. Agostinelli; Z. Ahammed; N. Ahmad; A. Ahmad ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/143056
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