Search for top squarks decaying to tau sleptons in p p collisions at s = 13 Te V with the ATLAS detector
Search for top squarks decaying to tau sleptons in p p collisions at s = 13 Te V with the ATLAS detector
复制标题
使用 ATLAS 探测器在 s = 13 Te V 的 p p 碰撞中搜索衰变为 tau 轻子的顶夸克
DOI：
10.1103/physrevd.98.032008
复制
发表时间：
2018
影响因子：
5
通讯作者：
Aaboud M
中科院分区：
文献类型：
--
作者：
Aaboud M
本文研究了具有两个τ轻子、-喷流和缺失横向动量的末态顶夸克的直接对产生。该分析基于质子-质子碰撞数据，对应于2015年和2016年大型强子对撞机ATLAS探测器记录的积分光度。考虑了两个具有两个强子衰变τ轻子或一个强子衰变τ轻子和一个轻子衰变τ轻子的排他性通道。在数据中没有观察到与标准模型预测的显著偏差。分析结果被解释为与模型无关的极限，并被用来推导出在一个具有几乎无质量引力子的超对称简化模型中，顶夸克t 1和τ slepton τ 1的质量的排斥极限。在该模型中，在95%的置信水平下排除了m（t 1）=1.16 TeV和m（τ 1）=1.00 TeV的质量。
A search for direct pair production of top squarks in final states with two tau leptons,-jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data atcorresponding to an integrated luminosity ofrecorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t˜1 and the tau slepton τ˜1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t˜1)=1.16 TeV and m(τ˜1)=1.00 TeV are excluded at 95% confidence level.