Status of the ALICE Fast Interaction Trigger in RUN 3

IF 0.4 4区物理与天体物理 Q4 PHYSICS, NUCLEAR

Physics of Atomic Nuclei Pub Date : 2025-07-11 DOI:10.1134/S1063778825700310

M. Sukhanov, A. Furs, D. Finogeev, T. Karavicheva, D. Serebryakov, N. Vozniuk, ALICE collaboration

引用次数: 0

Abstract

The Fast Interaction Trigger (FIT)—a hybrid system of three ALICE forward detectors—has participated in each data-taking session since the beginning of LHC Run 3 in July 2022. FIT is essential for ALICE operation and provides the fastest online trigger, measures precision collision time, charged-particle multiplicity and centrality, and determines the online vertex position. It also serves as the primary online luminometer used by the LHC for beam levelling at ALICE.

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RUN 3中ALICE快速交互触发器的状态

快速相互作用触发器（FIT）是一个由三个ALICE前向探测器组成的混合系统，自2022年7月LHC第三次运行开始以来，它一直参与每一次数据采集。FIT对ALICE操作至关重要，它提供了最快的在线触发，测量精确的碰撞时间、带电粒子的多重性和中心性，并确定在线顶点位置。它也作为主要的在线光度计使用的大型强子对撞机光束调平在爱丽丝。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics of Atomic Nuclei 物理-物理：核物理

CiteScore

0.60

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.