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arXiv 2409.02587hep-ph
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解释2HDM类型I中95 GeV异常现象

Explaining 95 GeV Anomalies in the 2-Higgs Doublet Model Type-I

Akshat Khanna, Stefano Moretti, Agnivo Sarkar

AI总结:

2HDM类型I模型通过两种配置解释LHC观测到的95 GeV异常现象,结合电中性标量玻色子和电荷奇玻色子的组合,提供了一种可能的解释方案。

摘要:

我们展示了2HDM类型I模型如何解释最近在大型强子对撞机(LHC)上观测到的γγ和τ+τ-最终态的过剩现象,这些现象在大型电子正子对撞机(LEP)数据的b\ar{b}签名中得到匹配,所有异常现象都集中在约95 GeV处。这种异常数据的解释是在翻转质量层次情况下,通过两种配置实现的:i)当最轻的电中性标量玻色子单独能够重现过剩现象;ii)当这种状态与电荷奇玻色子的组合能够实现。为了进一步测试这一场景,我们提出了若干基准点(BPs),以便于现象学研究。

英文摘要:

We show how the 2-Higgs Doublet Model (2HDM) Type-I can explain some excesses recently seen at the Large Hadron Collider (LHC) in $γγ$ and $τ^+τ^-$ final states in turn matching Large Electron Positron (LEP) data in $b\bar b$ signatures, all anomalies residing around 95 GeV. The explanation to such anomalous data is found in the aforementioned scenario when in inverted mass hierarchy, in two configurations: i) when the lightest CP-even Higgs state is alone capable of reproducing the excesses; ii) when a combination of such a state and the CP-odd Higgs boson is able to do so. To test further this scenario, we present some Benchmark Points (BPs) of it amenable to phenomenological investigation.

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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