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 2003.11108hep-phhep-ex
收藏

轻荷希格斯玻色子在2 HDM中LHC运行III的意义

Implications of light charged Higgs boson at the LHC Run III in the 2HDM

Abdesslam Arhrib, Rachid Benbrik, Hicham Harouiz, Stefano Moretti, Yan Wang, Qi-Shu Yan

摘要:

在这项研究中,我们专注于轻荷电希格斯玻色子的玻色子衰变(即,与$M_{H^\pm}<m_t$)在2-Higgs双态模型(2 HDM)I型中。为了在大型强子对撞机(LHC)上研究这种带电希格斯态的信号,在$H^0$玻色子是标准模型(SM)的情况下,我们假设它主要通过$h^0W^{\pm *}$和/或$H^\pm\to A^0W^{\pm *}$衰变(即,经由脱壳$W^{\pm}$玻色子),当来自$H^\pm\toτν$和$c{s}$搜索的排除边界变弱时,其可以达到$\tanβ\geq4$的相当大的分支比(BR)。通过使用6个符合当前LHC约束条件的基准点(BPs),我们进行了蒙特卡罗(MC)研究,并考察了LHC对通过上述玻色子模式衰变的、在单top和top对产生过程之后的top衰变中产生的轻荷电希格斯玻色子玻色子的敏感性。我们的研究结果表明,当综合光度可以达到100 fb $^{-1}$,大型强子对撞机有可能发现或排除大多数这些BPs通过这两个生产和衰变通道或两者兼而有之。

英文摘要:

In this study, we focus on the bosonic decays of light charged Higgs boson (i.e., with $M_{H^\pm}<m_t$) in the 2-Higgs Doublet Model (2HDM) Type-I. To study the signal of such a charged Higgs state at the Large Hadron Collider (LHC), in a scenario where the $H^0$ boson is the Standard Model (SM)-like one already discovered, we assume that it decays mainly via $h^0W^{\pm *}$ and/or $H^\pm\to A^0W^{\pm *}$ (i.e., via an off-shell $W^{\pm}$ boson), which can reach a sizable Branching Ratio (BR) for $\tanβ\geq4$, when the exclusion bounds from $H^\pm\toτν$ and $c{s}$ searches get weaker. By using six Benchmark Points (BPs), which are consistent with current LHC constraints, we perform a Monte Carlo (MC) study and examine the sensitivity of the LHC to light charged Higgs boson decaying via the above bosonic modes and produced in top decay following both single top and top pair production processes. Our findings demonstrate that, when the integrated luminosity can reach 100 fb$^{-1}$, the LHC has the potential to either discover or rule out most of these BPs via either of these two production and decay channels or both.

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。

↑