标题： 在质子-质子碰撞中搜索衰变为τ轻子对的重中性共振$\sqrt{s}$= 13 TeV 显示英文标题

标题： Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV

摘要： 在 CERN LHC 质子-质子碰撞中，以 13 TeV 的质心能量（$\sqrt{s}$= 13 TeV）搜索通过一对 τ 轻子衰变的重中性规范玻色子（Z'）。利用 CMS 探测器收集的数据对应于积分为 138 fb$^{-1}$的集成亮度。观测结果与标准模型过程的预期一致。在 Z' 规范玻色子质量范围内，给出了 Z' 生产横截面与其衰变为 τ 轻子对的分支比乘积在 95% 置信水平下的限制。对于顺序标准模型场景中的窄共振，排除了质量低于 3.5 TeV 的 Z' 规范玻色子。这是迄今为止此类搜索中最严格的限制。 显示英文摘要

摘要： A search for heavy neutral gauge bosons (Z') decaying into a pair of tau leptons is performed in proton-proton collisions at $\sqrt{s}$ = 13 TeV at the CERN LHC. The data were collected with the CMS detector and correspond to an integrated luminosity of 138 fb$^{-1}$. The observations are found to be in agreement with the expectation from standard model processes. Limits at 95% confidence level are set on the product of the Z' production cross section and its branching fraction to tau lepton pairs for a range of Z' boson masses. For a narrow resonance in the sequential standard model scenario, a Z' boson with a mass below 3.5 TeV is excluded. This is the most stringent limit to date from this type of search.