论文标题
在最终状态下搜索横向动量缺失的直接生产Electroweakinos，并在$ \ sqrt {s} = 13 $ tev的the the Atlas detector中丢失横向动量和Higgs玻色子腐烂到光子中
Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
论文作者
论文摘要
提出了搜索Chargino $ - $中性诺对通过125 Gev Higgs玻色子腐烂的腐烂。该研究基于2015年至2018年间收集的数据，该数据与LHC的地图集检测器相当于139 fb $^{ - 1} $ $ pp $ collisisions的综合发光度，在13 TEV的中质量中。没有观察到预期背景的显着过多。在几个Electroweakino生产横截面上设置了无质量$ \tildeχ^{0} _ {0} _ \tildeχ^{0} _置信度的上限，以及超越标准模型过程的可见横截面。在简化的超级对称模型的上下文中，95％的置信度限制在$ M（\tildeχ^{\ pm} _ {1}/\tildeχ^{0} _ {2} _ {2}）中，$ m（\tildeχ^{\ pm} _ {1}/\tildeχ^{0} _ {2}）在$ \tildeχ^{\ pm} _ {1} \tildeχ^{0} _ {2} $ crosseptry $ m（\tildeχ^{\ pm} _ {\ pm} _ {1}/\ tildeucutuctem crompepther上）也设置了95％置信度的限制$ m（\tildeχ^{0} _ {1}）$，在带有Gravitino的场景上是最轻的超对称粒子。 Higgsino生产横截面上设置了95％置信度的上限。 Higgsino质量以下380 GEV被排除在Higgsino完全腐烂到Higgs Boson和Gravitino的情况下。
A search for a chargino$-$neutralino pair decaying via the 125 GeV Higgs boson into photons is presented. The study is based on the data collected between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 139 fb$^{-1}$ of $pp$ collisions at a centre-of-mass energy of 13 TeV. No significant excess over the expected background is observed. Upper limits at 95% confidence level for a massless $\tildeχ^{0}_{1}$ are set on several electroweakino production cross-sections and the visible cross-section for beyond the Standard Model processes. In the context of simplified supersymmetric models, 95% confidence-level limits of up to 310 GeV in $m(\tildeχ^{\pm}_{1}/\tildeχ^{0}_{2})$, where $m(\tildeχ^{0}_{1})=0.5$ GeV, are set. Limits at 95% confidence level are also set on the $\tildeχ^{\pm}_{1}\tildeχ^{0}_{2}$ cross-section in the mass plane of $m(\tildeχ^{\pm}_{1}/\tildeχ^{0}_{2})$ and $m(\tildeχ^{0}_{1})$, and on scenarios with gravitino as the lightest supersymmetric particle. Upper limits at the 95% confidence-level are set on the higgsino production cross-section. Higgsino masses below 380 GeV are excluded for the case of the higgsino fully decaying into a Higgs boson and a gravitino.
