论文标题

在$ \ sqrt {s} = 13 $ tev $ pp $ collisions与Atlas detector的$ \ sqrt {s}中搜索多个最终状态中的新共鸣

A search for new resonances in multiple final states with a high transverse momentum $Z$ boson in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector

论文作者

ATLAS Collaboration

论文摘要

对共振进行了通用搜索,该事件包含$ z $玻色子的横向动量大于100 GEV,并腐烂成$ e^+e^ - $或$μ^+μ^ - $。在质子蛋白碰撞中,用Atlas检测器收集的分析数据在大型强子对撞机上的13个TEV中心能量对应于139 fb $^{ - 1} $的综合发光度。在六个独立事件类别(及其包含在内的总和)中,检查了两个不变的质量分布,以提高灵敏度的局部过量分布。未观察到明显的过量。两种情况下得出了95%置信度的排除限制:对高斯形共振的模型宽度与共振质量的3%至10%之间的解释,以及具有衰减模式的特定重型矢量模型$ W'\ to zw \ to zw \ to zw \ to zw \ to zw to \ ell el \ ell \ ell qq $。

A generic search for resonances is performed with events containing a $Z$ boson with transverse momentum greater than 100 GeV, decaying into $e^+e^-$ or $μ^+μ^-$. The analysed data collected with the ATLAS detector in proton-proton collisions at a centre-of-mass energy of 13 TeV at the Large Hadron Collider correspond to an integrated luminosity of 139 fb$^{-1}$. Two invariant mass distributions are examined for a localised excess relative to the expected Standard Model background in six independent event categories (and their inclusive sum) to increase the sensitivity. No significant excess is observed. Exclusion limits at 95% confidence level are derived for two cases: a model-independent interpretation of Gaussian-shaped resonances with the mass width between 3% and 10% of the resonance mass, and a specific heavy vector triplet model with the decay mode $W'\to ZW \to \ell\ell qq$.

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