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arXiv 2306.16596hep-ph
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电弱真空的稳定性与μ子g-2的超对称贡献

Stability of Electroweak Vacuum and Supersymmetric Contribution to Muon g-2

So Chigusa, Takeo Moroi, Yutaro Shoji

AI总结:

本文研究了超对称标准模型中电弱真空稳定性与μ子反常磁矩SUSY贡献的关系,发现显著SUSY贡献会通过增强三线性标量相互作用导致真空不稳定,从而推导出slepton质量上限,并提供了完整单圈衰变率计算方法。

摘要:

我们研究了超对称(SUSY)标准模型(SM)中电弱真空的稳定性,特别关注其与μ子反常磁矩$a_μ$的SUSY贡献之间的关系。如果对$a_μ$的SUSY贡献显著,电弱真空可能变得不稳定,这主要是由于三线性标量相互作用的增强,尤其是当sleptons较重时。因此,假设对$a_μ$的SUSY贡献增强,我们得到了slepton质量的上限。我们详细给出了在对$a_μ$的SUSY贡献增强的情况下,计算电弱真空衰变率的完整单圈方法。我们还给出了作为对$a_μ$的SUSY贡献函数的slepton质量上限。

英文摘要:

We study the stability of the electroweak vacuum in the supersymmetric (SUSY) standard model (SM), paying particular attention to its relation to the SUSY contribution to the muon anomalous magnetic moment $a_μ$. If the SUSY contribution to $a_μ$ is sizable, the electroweak vacuum may become unstable because of enhanced trilinear scalar interactions in particular when the sleptons are heavy. Consequently, assuming enhanced SUSY contribution to $a_μ$, an upper bound on the slepton masses is obtained. We give a detailed prescription to perform a full one-loop calculation of the decay rate of the electroweak vacuum for the case that the SUSY contribution to $a_μ$ is enhanced. We also give an upper bound on the slepton masses as a function of the SUSY contribution to $a_μ$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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