论文标题

MRSSM中的媒介中介子的轻子味腐烂

The lepton flavor violating decays of vector mesons in the MRSSM

论文作者

Sun, Ke-Sheng, Zhang, Wen-Hui, Chen, Jian-Bin, Zhang, Hai-Bin

论文摘要

最近,从实验中报道了Lepton风味违反中性矢量介子$ J/ψ$和$υ(NS)$的几个新界限。在工作中,我们通过有效的Lagrangian方法在最小R-对称超对称标准模型的情况下分析了这些过程。预测的分支比受质量插入参数的影响$δ^{ij} $,不同部分的贡献是可比的。考虑到实验的质量插入参数的约束,预计最有前途的过程$υ(ns)\ rightarrowlτ$的分支比率比当前的实验边界小十个数量级。

Recently several new bounds of the lepton flavor violating decays of the neutral vector mesons $J/ψ$ and $Υ(nS)$ are reported from the experiments. In the work, we analyze these processes in the scenario of the minimal R-symmetric supersymmetric standard model by means of the effective Lagrangian method. The predicted branching ratios are affected by the mass insertion parameters $δ^{ij}$ and the contributions from different parts are comparable. Taking account of the constraints on the mass insertion parameters from the experiments, the branching ratios for the most promising processes $Υ(nS)\rightarrow lτ$ are predicted to be ten orders of magnitude smaller than the present experimental bounds.

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