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arXiv 1306.3130nucl-ex
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ALICE VZERO系统的性能

Performance of the ALICE VZERO system

ALICE Collaboration

摘要:

ALICE是一个大型强子对撞机实验,致力于研究超相对论能量下质子-质子、质子-核和核-核碰撞中的强相互作用物质。ALICE VZERO系统由位于不对称位置的两个闪烁体阵列组成,在相互作用点的每一侧各有一个,在ALICE中起着核心作用。除了作为触发器的核心功能外,VZERO系统还用于监测大型强子对撞机的束流条件,排除束流诱导的背景,并测量核-核碰撞中的光度、粒子多重性、中心性和事件平面方向等基本物理量。在描述了VZERO系统之后,本出版物介绍了它在LHC运行四年多的性能。

英文摘要:

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, 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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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