论文标题
$ G-2 $和暗物质面对渐近安全的最小型号
Minimal models for $g-2$ and dark matter confront asymptotic safety
论文作者
论文摘要
我们使用高于普朗克量表的渐近安全框架来限制新物理学的简单模型的参数空间，这些模型可以容纳穆恩的异常磁矩的测量值和暗物质的遗物密度。我们将参数与Trans-Planckian量子物理学息息相关一组SU（2）$ \ times $ u（1）标准模型的不变扩展，每个扩展包括一个惰性标量字段和一对无色费米子，通过Yukawa-type相互作用与MUONS通信。在仪表系统和Yukawa耦合系统中存在交互式UV固定点在Planck量表上施加了一组边界条件，这使得人们可以在每种情况下得出独特的现象学预测，并将量规组的不同表示形式从彼此中区分出来。我们适用于从Atlas和CMS处的$ H \ \ \μ$信号强度的模型约束，直接LHC搜索用lettons和最终状态下的Electroweak生产以及Dark Matter Relic密度。我们发现它们进一步限制了可用的参数空间。
We use the framework of asymptotic safety above the Planck scale to constrain the parameter space of simple models of new physics that can accommodate the measured value of the anomalous magnetic moment of the muon and the relic density of dark matter. We couple parametrically to the trans-Planckian quantum physics a set of SU(2)$\times$U(1) invariant extensions of the Standard Model, each comprising an inert scalar field and one pair of colorless fermions that communicate to the muons through Yukawa-type interactions. The presence of an interactive UV fixed point in the system of gauge and Yukawa couplings imposes a set of boundary conditions at the Planck scale, which allow one to derive unique phenomenological predictions in each case and distinguish the different representations of the gauge group from one another. We apply to the models constraints from the $h\to μμ$ signal strength at ATLAS and CMS, direct LHC searches for electroweak production with leptons and missing energy in the final state, and the dark matter relic density. We find that they further restrict the available parameter space.
