论文标题
探索矢量夸克的路线图腐烂到新的标量或伪cal
Roadmap to explore vectorlike quarks decaying to a new scalar or pseudoscalar
论文作者
论文摘要
当前的实验数据允许无色弱的弱弱标量表或伪尺度。如果这样的单线场与TEV范围矢量般的顶部和底部合作伙伴一起出现，那么沉重的夸克可能会腐烂到Singlet State和第三代Quark，而Singlet State则腐烂到Quark and Boson Pairs。在各种模型中可能会出现这种可能性，但尚未在实验中进行探索，尤其是在类似媒介的Quark搜索的背景下。我们考虑一些最小模型，涵盖了顶部和底部合作伙伴的可能弱表示，可以映射到许多动机良好的紫外线完整理论。我们列出了矢量夸克的异国情调衰变的有趣且未开发的特征，并识别代表高光度LHC的不同信号拓扑的基准点。我们使用相关的直接搜索边界对参数空间进行一般扫描，并发现不需要任何微调的大区域对未开发的通道保持开放。我们还在最清洁的通道中进行了一个简单的投影研究，并指出了其他新的但实验性挑战性的通道如何用于探测参数空间的更多区域。
The current experimental data allow for a sub-TeV colourless weak-singlet scalar or pseudoscalar. If such a singlet field is present together with TeV-range vectorlike top and bottom partners, there is a possibility that the heavy quarks decay dominantly to the singlet state and a third-generation quark, and the singlet state decays to quark and boson pairs. Such a possibility may arise in various models but it has not been explored experimentally, especially in the context of vectorlike-quark searches. We consider some minimal models, covering the possible weak representations of the top and bottom partners, that can be mapped to many well-motivated ultraviolet-complete theories. We chart out the possible interesting and unexplored signatures of the exotic decay of vectorlike quarks and identify benchmark points representing different signal topologies for the high luminosity LHC. We perform a general scan of the parameter space with the relevant direct search bounds and find that large regions, which do not require any fine-tuning, remain open for the unexplored channels. We also perform a simple projection study in the cleanest channel and indicate how other new but experimentally challenging channels can be used to probe more regions of the parameter space.
