论文标题
$ z'$解决方案的限制对风味异常,具有反式普兰克渐近安全性
Constraints on $Z'$ solutions to the flavor anomalies with trans-Planckian asymptotic safety
论文作者
论文摘要
由$ b \ to s $过渡的风味异常的动机,我们将最小的模型嵌入了$ z'$ gauge玻色子,类似矢量的费米子和单线量表中的最小型号,并在trans-Planckian渐变渐变安全的框架中嵌入。模型参数的重新归一化组流中的固定点的存在导致预测$γ/z'$动力学混合,新的物理Yukawa耦合以及标量电位的四分之一耦合。我们从LHC上的最新高质量Dilepton共振搜索中得出了动力学混合的约束,表明该界限在此框架中通常是不可避免的,除非U(1)指控允许辐射性动力学混合的辐射生成。在后一种情况下,与风味异常一致的参数空间仍然可以通过直接搜索重型矢量样的夸克和瘦素来深入探测。我们得出了未来高光度运行的当前排除界限和预测。
Motivated by the flavor anomalies in $b \to s$ transitions, we embed minimal models with a $Z'$ gauge boson, vector-like fermions, and a singlet scalar in the framework of trans-Planckian asymptotic safety. The presence of a fixed point in the renormalization group flow of the models' parameters leads to predictions for the $γ/Z'$ kinetic mixing, the New Physics Yukawa couplings, and the quartic couplings of the scalar potential. We derive the constraint on the kinetic mixing from the most recent high-mass dilepton resonance searches at the LHC, showing that this bound is often inescapable in this framework, unless the U(1) charges conspire to forbid the radiative generation of kinetic mixing. In the latter case, the parameter space consistent with the flavor anomalies can still be probed in depth by direct LHC searches for heavy vector-like quarks and leptons. We derive the current exclusion bounds and projections for future high-luminosity runs.