论文标题

higgs玻色子衰减$ h \ rightarrowzγ$和$ h \ rightarrow m_v z $ in $ u(1)_x $ ssm

Higgs boson decays $h\rightarrow Z γ$ and $h\rightarrow m_V Z$ in the $U(1)_X$SSM

论文作者

Wang, Xi, Zhao, Shu-Min, Wang, Tong-Tong, Su, Lu-Hao, Li, Wei, Zhang, Ze-Ning, Yang, Zhong-Jun, Feng, Tai-Fu

论文摘要

我们对Higgs Boson衰变进行了详细分析,$ h \ rightarrowzγ$和$ h \ rightarrow m_v z $在$ u(1)_x $ ssm中,带有$ m_v $表示介子($ω,ρ,ϕ,ϕ,j/j/j/n $)。使用有效的拉格朗日方法,我们计算有效常数$ c_ {γz} $(cp-even)和$ \ tilde {c} _ {γz} $(cp-odd),用于顶点$hγZ$,这些新粒子循环图被纠正。从数值上讲,比率$γ_{u(1)_x}(h \ rightarrowzγ)/γ_{sm}(h \ rightarrowzγ)$在$ 1.02-1.35 $之间。对于矢量中$ω,ρ,ϕ $和$ j/ψ$,比率$γ_{u(1)_x}(h \ rightarrow m_v z)/γ_{sm}(h \ rightarrow m_v z)$主要分布在($ 1.011-1-1.45 $)的范围内。当$ m_v $代表$υ$时,比率$γ_{u(1)_x}的较大值(H \rightArrowυz)/γ_{sm}(h \ rightArrow歌υz)$主要位于($ 1.002-1.30 $)的范围内。这项工作可以为可以在LHC中搜索的特定类型的衰减过程提供参考。

We present a detailed analysis of the Higgs boson decays $h\rightarrow Z γ$ and $h\rightarrow m_V Z$ in the $U(1)_X$SSM, with $m_V$ denoting the meson ($ω,ρ,ϕ,J/ψ,Υ$). Using the effective Lagrangian method, we calculate the effective constants $C_{γZ}$ (CP-even) and $\tilde{C}_{γZ}$ (CP-odd) for the vertex $h γZ$, which are corrected by the new particle loop diagrams. Numerically, the ratio $Γ_{U(1)_X}(h\rightarrow Z γ)/Γ_{SM}(h\rightarrow Z γ)$ is between $1.02-1.35$. For the vector mesons $ω,ρ,ϕ$ and $J/ψ$, the ratios $Γ_{U(1)_X}(h\rightarrow m_V Z )/Γ_{SM}(h\rightarrow m_V Z)$ are mainly distributed in the range of ($1.01-1.45$). When $m_V$ represents $Υ$, the larger value of the ratio $Γ_{U(1)_X}(h\rightarrow ΥZ )/Γ_{SM}(h\rightarrow ΥZ)$ is mostly located in the range of ($1.002-1.30$). This work can provide a reference for specific types of decay processes which can be searched in LHC.

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