Stability of electroweak vacuum and supersymmetric contribution to muon g − 2

IF 5 1区物理与天体物理 Q1 PHYSICS, PARTICLES & FIELDS

Journal of High Energy Physics Pub Date : 2023-11-06 DOI:10.1007/jhep11(2023)027

So Chigusa, Takeo Moroi, Yutaro Shoji

引用次数: 0

Abstract

A bstract 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. With a μ being fixed, larger slepton masses require more enhanced trilinear couplings, which make the electroweak vacuum more unstable. Thus, assuming SUSY contribution to a μ being sizable, 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 .

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电弱真空的稳定性及其对μ子g−2的超对称贡献

研究了超对称(SUSY)标准模型(SM)中电弱真空的稳定性，特别注意了它与SUSY对μ介子异常磁矩A μ的贡献的关系。如果超对称性对μ的贡献相当大，则由于三线性标量相互作用的增强，电弱真空可能变得不稳定。当μ固定时，更大的睡眠质量需要更强的三线性耦合，这使得电弱真空更不稳定。因此，假设SUSY对μ的贡献相当大，就得到了睡眠质量的上界。我们给出了在SUSY对μ的贡献增强的情况下电弱真空衰减率的完整单回路计算的详细公式。我们还给出了睡眠质量的上界，它是SUSY对a μ的贡献的函数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of High Energy Physics PHYSICS, PARTICLES & FIELDS-

CiteScore

10.00

自引率

46.30%

发文量

2107

审稿时长

12 weeks

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).