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arXiv 2109.11274hep-ex
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利用$\sqrt{s}$ = 8 TeV pp碰撞的CMS开放数据搜索与重双μ子共振有关的暗物质候选者的产生

Search for the production of dark matter candidates in association with heavy dimuon resonance using the CMS open data for pp collisions at $\sqrt{s}$ = 8 TeV

S. Elgammal, M. Louka, A. Y. Ellithi, M. T. Hussein

摘要:

在这项工作中,我们提出了一个搜索的可能生产的暗物质粒子在大型强子对撞机旁边的一个新的假设规范玻色子表示为Z $^{\prime}$,这是由一个模型称为单Z $^{\prime}$。所研究的事件的拓扑结构是双μ子加上大的丢失的横动量。分析的数据是CMS探测器收集的CMS开放数据样本,以及CMS开放蒙特卡罗样本,用于2012年期间8 TeV质心能量的质子-质子碰撞,其对应于11.6 fb $^{-1}$的积分亮度。两个基准方案被用来解释的数据,暗希格斯的情况下,作为一个简化的单Z $^{\prime}$模型和有效场论形式主义的同一模型的情况。没有发现暗物质候选者存在的证据,因此,Z $^{\prime}$的质量和有效场论的截止尺度被设定为95个$\%$置信水平极限。

英文摘要:

In this work, we present a search for the possible production of Dark Matter particles at the Large Hadron Collider alongside a new hypothetical gauge boson denoted by Z$^{\prime}$, which is governed by a model called Mono-Z$^{\prime}$. The topology of the studied events is dimuons plus large missing transverse momentum. The analyzed data were the CMS open data samples collected by the CMS detector, in addition to the CMS open Monte Carlo samples, for the proton-proton collisions at 8 TeV center of mass energy during 2012, which correspond to an integrated luminosity of 11.6 fb$^{-1}$. Two benchmarks scenarios were used for interpreting the data, the Dark Higgs scenario as a simplified scenario of the Mono-Z$^{\prime}$ model and the effective field theory formalism of the same model. No evidence for the existence of dark matter candidates was found. Consequently, 95$\%$ confidence level limits were set on the masses of the Z$^{\prime}$ and the cutoff scale of the effective field theory.

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