ATLAS使用LHC Run 2数据集搜索额外的标量和奇异的希格斯玻色子衰变

IF 23.9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physics Reports Pub Date : 2024-10-09 DOI:10.1016/j.physrep.2024.09.002

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引用次数: 0

摘要

本报告回顾了ATLAS合作组织利用大型强子对撞机第2次运行期间收集的13tev质子-质子碰撞数据中高达140 fb−1的数据，搜索可能的额外标量粒子和希格斯玻色子的奇异衰变的已发表结果。对关键结果进行了检查，并注意到观察到的过度现象，尽管在统计上从未引人注目。对扩展标准模型的几个模型的参数进行了限制，例如通过添加一个或多个单重态或双重态场，或提供奇异的希格斯玻色子衰变通道。讨论了新搜索的摘要以及先前搜索的扩展。这些新的结果具有更广泛的影响范围或达到更强的排除极限。本文重点介绍了为这些搜索而开发的新实验技术。还列出了尚未检查的搜索渠道，因为这些渠道提供了对未来可能探索领域的见解。

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ATLAS searches for additional scalars and exotic Higgs boson decays with the LHC Run 2 dataset

This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb⁻¹ of 13 TeV proton–proton collision data collected during Run 2 of the Large Hadron Collider. Key results are examined, and observed excesses, while never statistically compelling, are noted. Constraints are placed on parameters of several models which extend the Standard Model, for example by adding one or more singlet or doublet fields, or offering exotic Higgs boson decay channels. Summaries of new searches as well as extensions of previous searches are discussed. These new results have a wider reach or attain stronger exclusion limits. New experimental techniques that were developed for these searches are highlighted. Search channels which have not yet been examined are also listed, as these provide insight into possible future areas of exploration.

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来源期刊

Physics Reports 物理-物理：综合

CiteScore

56.10

自引率

0.70%

发文量

102

审稿时长

9.1 weeks

期刊介绍： Physics Reports keeps the active physicist up-to-date on developments in a wide range of topics by publishing timely reviews which are more extensive than just literature surveys but normally less than a full monograph. Each report deals with one specific subject and is generally published in a separate volume. These reviews are specialist in nature but contain enough introductory material to make the main points intelligible to a non-specialist. The reader will not only be able to distinguish important developments and trends in physics but will also find a sufficient number of references to the original literature.