首页> 外军国防科技报告 >Search for low mass vector resonances decaying into quark-antiquark pairs with $77.0~\mathrm{fb}^{-1}$ of proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ - CERN Document Server
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Search for low mass vector resonances decaying into quark-antiquark pairs with $77.0~\mathrm{fb}^{-1}$ of proton-proton collisions at $\sqrt{s}=13~\mathrm{TeV}$ - CERN Document Server

机译:在$ \ sqrt {s} = 13~ \ mathrm {TeV} $ - CERN文档中搜索质量 - 质子碰撞$ 77.0~ \ mathrm {fb} ^ { - 1} $的低质量矢量共振衰减为夸克 - 反夸克对服务器

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摘要

A search for low mass vector resonances decaying into quark-antiquark pairs is presented. The analysis is based on data collected in proton-proton collisions in 2017 and combined with data collected in 2016 at $\sqrt{s}=13~\mathrm{TeV}$ with the CMS detector at the CERN LHC, corresponding to a total integrated luminosity of $77.0~\mathrm{fb}^{-1}$. Resonance candidates are identified as large-radius jets with two pronged substructure at high transverse momentum. The jet invariant mass spectrum is probed for a potential peak over a smoothly falling background. No evidence for such a resonance is observed within the mass range of $50-450~\mathrm{GeV}$. Upper limits at the $95\%$ confidence level are set on the mass-coupling parameter space. The 2017 results extend the search region for the first time to masses between $300~\mathrm{GeV}$ and $450~\mathrm{GeV}$ in the boosted regime.

著录项

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  • 作者单位
  • 年(卷),期 2019(),
  • 年度 2019
  • 页码
  • 总页数 17
  • 原文格式 PDF
  • 正文语种
  • 中图分类
  • 网站名称 欧洲核子研究中心机构库
  • 栏目名称 所有文件
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  • 入库时间 2022-08-19 17:00:16
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