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首页> 外文期刊>Physics Letters, B. Nuclear Physics and High Energy Physics >A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV
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A search for pair production of new light bosons decaying into muons in proton-proton collisions at 13 TeV

机译:搜索在13 TEV的质子 - 质子碰撞中腐烂的新光玻色子腐烂的新光玻色子的生产

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摘要

A search for new light bosons decaying into muon pairs is presented using a data sample corresponding to an integrated luminosity of 35.9 fb(-1) of proton-proton collisions at a center-of-mass energy root s = 13 TeV, collected with the CMS detector at the CERN LHC. The search is model independent, only requiring the pair production of a new light boson and its subsequent decay to a pair of muons. No significant deviation from the predicted background is observed. A model independent limit is set on the product of the production cross section times branching fraction to dimuons squared times acceptance as a function of new light boson mass. This limit varies between 0.15 and 0.39 fb over a range of new light boson masses from 0.25 to 8.5 GeV. It is then interpreted in the context of the next-to-minimal supersymmetric standard model and a dark supersymmetry model that allows for nonnegligible light boson lifetimes. In both cases, there is significant improvement over previously published limits. (C) 2019 The Author(s). Published by Elsevier B.V.
机译:使用在中心的质量一能量根S = 13 TeV的对应于质子 - 质子碰撞35.9 FB(-1)的一个集成的光度数据样本提出一种新的光玻色子衰变成μ介子对搜索,与所收集的在CERN LHC CMS探测器。搜索是独立模式,仅需要对生产的一种新型光玻色子的和其随后衰变到一对μ子。从预测的背景没有显著偏差观察。模型独立的限被设定在产生截面倍分支分数的乘积的平方dimuons倍接受为新光玻色子质量的函数。此限制在从0.25至8.5电子伏特的范围内的新的光玻色子群众0.15和FB之间0.39变化。它然后在的上下文中解释的下一个到最小超对称模型和暗超对称模型,其允许不可忽视的光玻色子的寿命。在这两种情况下,都较以前的发布限制显著的改善。 (c)2019年作者。由elsevier b.v出版。

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