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 backgrounds 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.
|Autori interni:||BRUNO, Giuseppe Eugenio|
|Titolo:||Performance of the ALICE VZERO system|
|Rivista:||JOURNAL OF INSTRUMENTATION|
|Data di pubblicazione:||2013|
|Digital Object Identifier (DOI):||10.1088/1748-0221/8/10/P10016|
|Appare nelle tipologie:||1.1 Articolo in rivista|