论文标题

$ z $ boson衰减$ z \ rightarrow {{l_i}^{\ pm} {l_j}^{\ mp}} $和higgs -boson衰减$ h \ rightarrow {{l_i} $ u(1)$ MSSM的扩展

$Z$ boson decays $Z\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$ and Higgs boson decays $h\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$ with lepton flavor violation in a $U(1)$ extension of the MSSM

论文作者

Wang, Yi-Tong, Zhao, Shu-Min, Wang, Tong-Tong, Wang, Xi, Long, Xin-Xin, Ma, Jiao, Feng, Tai-Fu

论文摘要

$ u(1)_x $ ssm是最小超对称标准模型(MSSM)的扩展,其本地量规组为$ su(3)_c \ times su(2)_l \ times u(times u(times u(times u(1)_y \ times u(times u(times u(times u(times u(Times u(Times)u(times u(times u(times u(Times)u(1)u(1)u(1),)_x $。我们研究违反Lepton风味(LFV)衰减$ z \ rightarrow {{l_i}^{\ pm} {l_j}^{\ mp}} $($ z \ rightArroweμ$,$ z \ z \ rightarrow e temarow e temarow ex $ h \ rightarrow {{l_i}^{\ pm} {l_j}^{\ mp}} $($ h \ rightArroweμ$,$ h \ rightArroweτ$,$ h \ rightarroweτ$,$ h \rightarrowμ\rightArrowμx),在这种型号中。在数值结果中,$ z \ rightarrow的分支比率{{{l_i}^{\ pm} {l_j}^{\ mp}} $来自$ 10^{ - 9} $ to $ 10^{ - 13} $ and Brainking Ratios and the Branching Ratios $ h \ rightarrow {{l_i}^{\ pm} {l_j}^{\ mp}} $来自$ 10^{ - 3} $至$ 10^{ - 9} $,可以接近当前的实验上限。基于最新的实验数据,我们分析了不同敏感参数对分支比率的影响,并为将来的实验做出合理的预测。主要的灵敏参数和LFV源是与初始和最后一代相对应的非对基因元素,可以从数值分析中看到。

$U(1)_X$SSM is the extension of the minimal supersymmetric standard model (MSSM) and its local gauge group is $SU(3)_C\times SU(2)_L \times U(1)_Y \times U(1)_X$. We study lepton flavor violating (LFV) decays $Z\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$($Z\rightarrow eμ$, $Z\rightarrow eτ$, and $Z\rightarrow μτ$) and $h\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$($h\rightarrow eμ$, $h\rightarrow eτ$, and $h\rightarrow μτ$), in this model. In the numerical results, the branching ratios of $Z\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$ are from $10^{-9}$ to $10^{-13}$ and the branching ratios of $h\rightarrow{{l_i}^{\pm}{l_j}^{\mp}}$ are from $10^{-3}$ to $10^{-9}$, which can approach the present experimental upper bounds. Based on the latest experimental data, we analyze the influence of different sensitive parameters on the branching ratio, and make reasonable predictions for future experiments. The main sensitive parameters and LFV sources are the non-diagonal elements corresponding to the initial and final generations of leptons, which can be seen from the numerical analysis.

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