Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
Search for squarks and gluinos in final states with hadronically decaying $\tau$-leptons, jets, and missing transverse momentum using $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
复制标题
使用 ATLAS 探测器在 $sqrt{s}$ = 13 TeV 处进行 $pp$ 碰撞，搜索具有强子衰变 $ au$-轻子、喷流和缺失横向动量的最终态夸克和胶子
DOI：
10.1103/physrevd.99.012009
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
K. Desch (on behalf of the ATLAS Collaboration)
中科院分区：
文献类型：
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作者：
M. Aaboud;O. Ricken;S. Schaepe;P. Koenig;P. Bechtle;K. Desch (on behalf of the ATLAS Collaboration)
本文提出了在具有大量横向动量、喷流和至少一个强子衰变轻子缺失的事件中寻找超对称性的方法。我们考虑了两个具有一个或至少两个轻子的互斥终态。该分析基于质子-质子碰撞，对应于大型强子对撞机提供的综合光度，并由ATLAS探测器在2015年和2016年记录。没有观察到明显超出标准模型期望。在95%置信水平下，设置了与模型无关的横截面上限，并提供了两种信号场景的排除极限：具有丰富级联衰减的胶子对产生的简化模型和具有规范介导的超对称破缺（GMSB）的模型。在简化模型中，最轻超对称粒子（LSP）的质量值较低时，不考虑2000 GeV以下的胶子质量，而胶子质量在1400 GeV左右时，则不考虑1000 GeV以下的LSP质量。在GMSB模型中，超对称破缺尺度的所有值在110 TeV以下都被排除，在120 TeV以下则被排除。
A search for supersymmetry in events with large missing transverse momentum, jets, and at least one hadronically decaying-lepton is presented. Two exclusive final states with either exactly one or at least two-leptons are considered. The analysis is based on proton-proton collisions atcorresponding to an integrated luminosity ofdelivered by the Large Hadron Collider and recorded by the ATLAS detector in 2015 and 2016. No significant excess is observed over the Standard Model expectation. At 95% confidence level, model-independent upper limits on the cross section are set and exclusion limits are provided for two signal scenarios: a simplified model of gluino pair production with-rich cascade decays, and a model with gauge-mediated supersymmetry breaking (GMSB). In the simplified model, gluino masses up to 2000 GeV are excluded for low values of the mass of the lightest supersymmetric particle (LSP), while LSP masses up to 1000 GeV are excluded for gluino masses around 1400 GeV. In the GMSB model, values of the supersymmetry-breaking scale are excluded below 110 TeV for all values ofin the range, and below 120 TeV for.