Search for Soft Unclustered Energy Patterns in Proton-Proton Collisions at 13 TeV

IF 8.1 1区 物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY
A. Hayrapetyanet al.(CMS Collaboration)
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引用次数: 0

Abstract

The first search for soft unclustered energy patterns (SUEPs) is performed using an integrated luminosity of 138fb1 of proton-proton collision data at 𝑠=13TeV, collected in 2016–2018 by the CMS detector at the LHC. Such SUEPs are predicted by hidden valley models with a new, confining force with a large ’t Hooft coupling. In events with boosted topologies, selected by high-threshold hadronic triggers, the multiplicity and sphericity of clustered tracks are used to reject the background from standard model quantum chromodynamics. With no observed excess of events over the standard model expectation, limits are set on the cross section for production via gluon fusion of a scalar mediator with SUEP-like decays.

Abstract Image

在 13 TeV 质子-质子对撞中寻找软非成簇能量模式
利用大型强子对撞机 CMS 探测器在 2016-2018 年收集到的、亮度为 138 fb-1 的 √𝑠=13 TeV 质子-质子对撞数据,首次对软不成团能量模式(SUEPs)进行了搜索。这种 SUEPs 是由具有大 't Hooft 耦合的新约束力的隐谷模型预测的。在由高阈值强子触发器选择的具有助推拓扑结构的事件中,成簇轨道的多重性和球形性被用来剔除标准模型量子色动力学的背景。由于没有观测到超过标准模型期望的过量事件,因此对通过与 SUEP 类似衰变的标量介质的胶子融合产生的截面设定了限制。
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
Physical review letters
Physical review letters 物理-物理:综合
CiteScore
16.50
自引率
7.00%
发文量
2673
审稿时长
2.2 months
期刊介绍: Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks
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