Archivio Istituzionale della RicercaALICE 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.
Performance of the ALICE VZERO system / Abbas, E., Abelev, B., Adam, J., Adamova, D., Adare, A.M., Aggarwal, M.M., Rinella, G., Agnello, M., Agocs, A.G., Agostinelli, A., Ahammed, Z., Ahmad, N., Ahmad, A., Ahn, S.A., Ahn, S.U., Aimo, I., Ajaz, M., Akindinov, A., Aleksandrov, D., Alessandro, B., et al.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - STAMPA. - 8:(2013), pp. 0-22. [10.1088/1748-0221/8/10/P10016]
Performance of the ALICE VZERO system
AGNELLO, MICHELANGELO;AIMO, ILARIA;BUFALINO, STEFANIA
2013
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 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.
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https://hdl.handle.net/11583/2543377
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