论文标题

在2HDM中,LHC Run III的光线充电higgs玻色子的含义

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

论文作者

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

论文摘要

在这项研究中,我们专注于2-Higgs Doublet模型(2HDM)I type-i中带有$ m_ {h^\ pm} <m_t $的光电玻色子的骨衰变。在大型强子对撞机(LHC)上研究这种充电的希格斯州的信号,在$ h^0 $玻色子的情况下,我们已经发现了标准型号(SM),我们假设它主要通过$ h^0w^0w^0w^{\ pm *} $和/OR $ h^\ pm pm pm pm to a^0w ww^0. $ w^{\ pm} $ boson),它可以以$ \tanβ\ geq4 $达到较高的分支比率(BR),当排除的限制从$ h^\ pm \toτν$和$ c {s} $ searches搜索变得虚弱。通过使用与当前LHC约束一致的六个基准点(BPS),我们进行了蒙特卡洛(MC)研究,并检查LHC对光带电的Higgs玻色子衰减的敏感性,通过上述玻色粒模式并在单层和顶级生产过程中在顶部衰减中产生。我们的发现表明,当集成的发光度可以达到100 fb $^{ - 1} $时,LHC有可能通过这两个生产和衰减通道中的任何一个或两者兼而有之发现或排除这些BP的大多数。

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.

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