Nuclear Physics B ( IF 2.5 ) Pub Date : 2020-05-26 , DOI: 10.1016/j.nuclphysb.2020.115058 Liangliang Shang , Wei Wei , Bingfang Yang
In an extension of the Standard Model with vector-like top partner, we investigate the vector-like top quark partner T via the channel at future linear collider. Due to the larger production rates than unpolarized beams, we calculate the production cross sections in polarized beams at and 3 TeV. We make a fast detector simulation for signal and background events and take a set of appropriate kinematic variables to enhance the signal significance. When the initial state radiation and beamstrahlung effects are in charge, we find that the correlated region () and () can be excluded at 2σ level with the integrated luminosity () at TeV. When the center-mass energy is upgraded to 3 TeV, the excluded region is expanded to () and () with the integrated luminosity (). Besides, we find the 5σ discovery correlated region is () and () with the integrated luminosity at TeV (3 TeV).
中文翻译:
在eγ对撞机上通过th通道搜索类似矢量的T夸克
在标准模型的扩展中,像矢量一样的顶级伴侣,我们通过通道研究了像矢量一样的顶级夸克伴侣T在未来的线性对撞机上。由于生产率比非偏振光束大,因此我们计算了和3 TeV。我们对信号和背景事件进行了快速检测器仿真,并采用了一组适当的运动学变量来增强信号的重要性。当初始状态下的辐射和束致伸缩效应负责时,我们发现相关区域 ()和 ()可以以2σ的亮度排除在外 () 在 TeV。当中心质量能量 升级到3 TeV,排除区域扩展到 ()和 ()的综合亮度 ()。此外,我们发现5σ发现相关区域为 ()和 ()的综合亮度 在 TeV(3 TeV)。