arXiv 2402.112322024-02hep-ph

最小伸缩子模型中LHC顶对伴随双光子通道下的95 GeV轻Higgs

95 GeV light Higgs in the top-pair-associated diphoton channel at the LHC in the minimal dilaton model

Kun Wang, Jingya Zhu

备注：: 9 pages, 6 figures, 1 tables
发表信息：: Chin. Phys. C 48, no.7,073105 (2024)
DOI：: 10.1088/1674-1137/ad4268

阅读 PDF

arXiv 页面 ↗HTML 原文 ↗

AI总结：

本文在最小伸缩子模型下，研究了在14 TeV LHC通过顶对伴随双光子通道探测95 GeV轻Higgs的可行性，发现3000 fb^-1亮度下可覆盖|sinθ_S|>0.2的参数空间。

摘要：

受表明存在扩展Higgs扇区的实验迹象与理论框架启发，我们探讨了在14 TeV LHC上探测在最小伸缩子模型中衰变为双光子的95 GeV轻Higgs玻色子的可行性。首先，我们确定了产生截面、衰变分支比与模型参数（如标量混合角$\sinθ_S$）之间的关联。随后，我们利用Monte Carlo模拟生成了通过$pp \to t\bar{t}(s\to γγ)$过程的轻Higgs玻色子信号及相应的背景。为有效将信号与主导背景$ttγγ$分离，我们采用了细致的基于截断的选择过程。最终，我们发现，在$L = 3000 {{~\rm fb}^{-1}}$的积分亮度下，$|\sinθ_S|>0.2$的区域可以在$3σ$水平上被覆盖。

英文摘要：

Motivated by experimental hints and theoretical frameworks indicating the existence of an extended Higgs sector, we explore the feasibility of detecting a 95 GeV light Higgs boson decaying into a diphoton within the minimal dilaton model at the 14 TeV LHC. Initially, we identify the correlations between the production cross section, decay branching ratios, and model parameters, e.g., the scalar mixing angle $\sinθ_S$. Subsequently, we utilize Monte Carlo simulations to generate the signal of the light Higgs boson via the $pp \to t\bar{t}(s\to γγ)$ process, along with the corresponding backgrounds. To effectively separate the signal from the dominant backgrounds $ttγγ$, we employ a meticulous cut-based selection process. Ultimately, we find that with an integrated luminosity of $L = 3000 {{~\rm fb}^{-1}}$, the regions of $|\sinθ_S|>0.2$ can be covered over the $3σ$ level.

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。

AI总结：

摘要：

英文摘要：

相关论文