arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2408.13592hep-ph
收藏

2HDMS 与 N2HDM 中的真空(不)稳定性

Vacuum (in)stability in 2HDMS vs N2HDM

Jayita Lahiri, Gudrid Moortgat-Pick

AI总结:

本研究比较了扩展标量模型 N2HDM 和 2HDMS 的真空稳定性判据,通过容纳 95 GeV 超额事件的情景,探讨了各类耦合测量对区分真空结构的影响,并分析了真空稳定性对 2HDMS 中暗物质候选者的约束。

摘要:

在本研究中,我们检验了两个具有扩展标量扇区的模型(即 N2HDM 和 2HDMS)的真空稳定性判据,并对两者进行了详细比较。为了进行演示,我们选择了一个能在两个模型中均容纳最近观测到的 95 GeV 超额事件的情景。我们进一步探讨了 Yukawa 耦合、规范玻色子耦合以及最重要的标量三线性自耦合的测量,在区分两个模型真空结构方面的影响。我们进一步研究了真空稳定性对包含可行暗物质候选者的 2HDMS 情景的约束,并将其与 N2HDM 情况进行了比较。

英文摘要:

In this work, we examine the criteria for vacuum stability in two models with extended scalar sectors namely, the N2HDM and the 2HDMS and make a detailed comparison between the two. For the purpose of demonstration, we choose a scenario which can accommodate the recently observed 95 GeV excess in both models. We further explore the impact of the measurement of the Yukawa couplings, the gauge boson couplings and most importantly the trilinear self-couplings of the scalars, in distinguishing the vacuum structure in both models. We further investigate the constraints from vacuum stability on the 2HDMS scenario that accommodates a viable dark matter candidate and compare it with the N2HDM case.

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。

↑