论文标题
通过FCNC耦合的单个顶级生产，$ e^{ - } e^{+} $ collider与质量中心能量$ \ sqrt {s} = 240 $ gev
Single top production via FCNC couplings at an $e^{-}e^{+}$ collider with center-of-mass energy $\sqrt{s}=240$ GeV
论文作者
论文摘要
可以在未来的圆形电子峰对撞机（CEPC）上研究顶级夸克物理学的各个方面。特别是，即使从$ \ \ sqrt {s} \ gtrsim m_t $到$ \ sqrt {s} = 240 $ gev的生产中，也可以从charm of charm Covark上进行几种Quark，也可以研究，即使是从$ \ sqrt {s} \ gtrsim m_t $到$ \ gtrsim m_t $到$ \ gtrsim m_t $，也可以研究质量Quark的Quark，即使是与Charm Chark Quark相关联的几个，也可以研究，即我们在这里探索左右镜像模型中的该信号，这是一个左右模型，其中包括镜像费米子。该模型被作为解决强大CP问题及其丰富现象学的可能解决方案的动机。我们发现，对于模型参数的特定方案，与最新的实验约束一致，来自该过程的信号$ e^+e^ - \ to v \ to v \ to tc $（$ v = z，\，z^，z^{\ prime} $）可以提供可检测的信号，因此可以提供FCNC互动的证据;在这些情况下，新的中性仪表玻色子的质量可以高达$ m_ {z'} = 7 $ tev。
Aspects of top quark physics can be studied at a future Circular Electron-Positron Collider (CEPC). In particular, Flavor-Changing Neutral Current interactions (FCNC) of the top quark can be studied even with a center-of-mass energy from $\sqrt{s}\gtrsim m_t$ to $\sqrt{s}=240$ GeV, through the production a single top quark in association with a charm quark, which can arise in several scenarios of new physics. We explore here this signal within the Left-Right Mirror Model, which is a Left-Right model that includes mirror fermions; this model is motivated as a possible solution to the strong CP problem and by its rich phenomenology. We find that for particular scenarios of the model parameters, which are in agreement with the most up-to-date experimental constraints, the signal coming from the process $e^+e^-\to V \to tc$ ($V=Z,\,Z^{\prime}$) provide a detectable signal and thus it can give evidence for FCNC interactions; in these scenarios the mass of a new neutral gauge boson can be as high as $m_{Z'}=7$ TeV.
