Combined search for supersymmetry with photons in proton-proton collisions at s = 13 TeV
Combined search for supersymmetry with photons in proton-proton collisions at s = 13 TeV
复制标题
s = 13 TeV 质子-质子碰撞中光子超对称性的联合搜索
DOI：
10.1016/j.physletb.2019.135183
复制
发表时间：
2020
影响因子：
4.4
通讯作者：
Sirunyan A
中科院分区：
文献类型：
--
作者：
Sirunyan A
结合四个搜索新的物理涉及签名至少有一个光子和大的失踪横向动量，规范介导的超对称性（SUSY）破缺的广义模型的动机，提出。所有的搜索都使用了s= 13 TeV的质子-质子碰撞数据，这些数据是在2016年由LHC的CMS探测器记录的，对应的积分光度为35.9 fb− 1。具有至少一个光子和大的缺失横向动量的签名被分类为具有两个孤立光子的事件、具有轻子和光子的事件、具有额外喷流的事件和具有至少一个高能光子的事件。从标准模型过程中没有观察到超出预期的事件，并且在规范介导的超对称性的背景下设置了限制。与单独的搜索相比，组合扩展的灵敏度，规范介导的超对称性在电弱和强生产的情况下，由高达100 GeV的中性伴子和电荷子质量，并产生第一CMS的结果结合各种超对称性搜索事件中的光子在s= 13 TeV。
A combination of four searches for new physics involving signatures with at least one photon and large missing transverse momentum, motivated by generalized models of gauge-mediated supersymmetry (SUSY) breaking, is presented. All searches make use of proton-proton collision data at s= 13 TeV, which were recorded with the CMS detector at the LHC in 2016, and correspond to an integrated luminosity of 35.9 fb− 1. Signatures with at least one photon and large missing transverse momentum are categorized into events with two isolated photons, events with a lepton and a photon, events with additional jets, and events with at least one high-energy photon. No excess of events is observed beyond expectations from standard model processes, and limits are set in the context of gauge-mediated SUSY. Compared to the individual searches, the combination extends the sensitivity to gauge-mediated SUSY in both electroweak and strong production scenarios by up to 100 GeV in neutralino and chargino masses, and yields the first CMS result combining various SUSY searches in events with photons at s= 13 TeV.