论文标题
在真空稳定性的smuon质量上，在穆恩$ g-2 $异常的情况下
Upper bound on the smuon mass from vacuum stability in the light of muon $g-2$ anomaly
论文作者
论文摘要
假设MUON $ G-2 $异常是由超对称（SUSY）贡献解释的，我们在Smuon质量上获得了上限。在最小的SUSY标准模型中，当Higgsino质量参数较大时，SUSY对MUON $ G-2 $的贡献将增强。然后，增强了Smuon-smuon-higgs三联耦合，这可能会使电动脉动真空稳定。在这种情况下，我们精确地计算了电牵引真空的衰减速率。我们包括一环效应，这些效应对于确定衰减率的总体归一化至关重要。要求MUON异常磁矩的理论预测与观察到的价值在$ 1 $和$2σ$级别（等于观察到的值的中心值）一致，我们发现最轻的Smuon质量应小于$ 1.38 $和$ 1.68 \ \ {\ rmmmmmm tev} $（$ 1.20 $} $ 1.20 \ te \ tev \ te \ te \ tm te \ rm。 （分别是两个higgs玻色子的真空期望值的比例）（分别为$ \tanβ$的值不敏感。
We derive an upper bound on the smuon mass assuming that the muon $g-2$ anomaly is explained by the supersymmetric (SUSY) contribution. In the minimal SUSY standard model, the SUSY contribution to the muon $g-2$ is enhanced when the Higgsino mass parameter is large. Then, the smuon-smuon-Higgs trilinear coupling is enhanced, which may destabilize the electroweak vacuum. We calculate precisely the decay rate of the electroweak vacuum in such a case. We include one-loop effects which are crucial to determine the overall normalization of the decay rate. Requiring that the theoretical prediction of the muon anomalous magnetic moment is consistent with the observed value at the $1$ and $2σ$ levels (equal to the central value of the observed value), we found that the lightest smuon mass should be smaller than $1.38$ and $1.68\ {\rm TeV}$ ($1.20\ {\rm TeV}$) for $\tanβ=10$ (with $\tanβ$ being the ratio of the vacuum expectation values of the two Higgs bosons), respectively, and the bound is insensitive to the value of $\tanβ$.
