用 CMS 实验寻找轻子味道违反现象

IF 1.5 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Modern Physics Letters A Pub Date : 2024-04-26 DOI:10.1142/s0217732324300015

Jian Wang

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引用次数: 0

摘要

对质子味道违反（LFV）的搜索处于粒子物理实验研究的前沿，为标准模型之外的许多物理场景提供了灵敏的探测手段。欧洲核子研究中心大型强子对撞机（LHC）提供的高质子-质子对撞能量和光度，以及 CMS 探测器的卓越性能，使得 LFV 搜寻项目得以广泛开展。本文回顾了 CMS 实验利用大型强子对撞机运行 2 收集的数据进行的广泛低频变构搜索，包括τ→3μ 衰变、希格斯玻色子衰变以及顶夸克产生和衰变。每项分析都阐明了在线和离线事件选择、信号建模、背景抑制和估计以及统计解释。这些搜索涉及大横向动量范围内的各种终态粒子，展示了CMS实验在探索粒子物理基本问题方面的能力。

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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Searching for lepton flavor violation with the CMS experiment

Searches for Lepton Flavor Violation (LFV) stand at the forefront of experimental particle physics research, offering a sensitive probe to many scenarios of physics beyond the Standard Model. The high proton–proton collision energy and luminosity provided by the CERN Large Hadron Collider (LHC) and the excellent CMS detector performance allow for an extensive program of LFV searches. This paper reviews a broad range of LFV searches conducted at the CMS experiment using data collected in LHC Run 2, including $τ \to 3 μ$ decays, Higgs boson decays, and top quark production and decays. In each analysis, the online and offline event selections, signal modeling, background suppression and estimation, and statistical interpretation are elucidated. These searches involve various final state particles in a large transverse momentum range, showcasing the capability of the CMS experiment in exploring fundamental questions in particle physics.

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来源期刊

Modern Physics Letters A 物理-物理：核物理

CiteScore

3.10

自引率

7.10%

发文量

186

审稿时长

3 months

期刊介绍： This letters journal, launched in 1986, consists of research papers covering current research developments in Gravitation, Cosmology, Astrophysics, Nuclear Physics, Particles and Fields, Accelerator physics, and Quantum Information. A Brief Review section has also been initiated with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.