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 1802.00429hep-ph
收藏

类标准模型希格斯玻色子$h\rightarrow μτ$在反跷跷板中微子质量3-3-1模型中的衰变

Decay of standard model-like Higgs boson $h\rightarrow μτ$ in a 3-3-1 model with inverse seesaw neutrino masses

T. Phong Nguyen, T. Thuy Le, T. T. Hong, L. T. Hue

摘要:

通过引入新的中性轻子规范单线态,改进了含有右手中微子的3-3-1模型,用反跷跷板机制解释了最近的中微子振荡实验数据.我们证明,这些模型预测的轻子味违反衰变的标准模型一样的希格斯玻色子$h^0_1\rightarrow μτ,eτ$,这是在原来的版本中被抑制的有希望的信号。在幺正规范中引入了对这些衰减振幅的单圈贡献。通过数值计算,我们发现在满足$μ\rightarrow eγ$实验数据的参数空间范围内,$h^0_1\rightarrowμτ,eτ$衰变的分支比可以达到$10^{-5}$的值. $10^{-4}$的值出现在轻子的汤川耦合接近微扰极限时。还讨论了这些参数空间区域的一些有趣的性质。

英文摘要:

By adding new gauge singlets of neutral leptons, the improved versions of the 3-3-1 models with right-handed neutrinos have been recently introduced in order to explain recent experimental neutrino oscillation data through the inverse seesaw mechanism. We prove that these models predict promising signals of lepton-flavor-violating decays of the standard-model-like Higgs boson $h^0_1\rightarrow μτ,eτ$, which are suppressed in the original versions. One-loop contributions to these decay amplitudes are introduced in the unitary gauge. Based on a numerical investigation, we find that the branching ratios of the decays $h^0_1\rightarrowμτ,eτ$ can reach values of $10^{-5}$ in the regions of parameter space satisfying the current experimental data of the decay $μ\rightarrow eγ$. The value of $10^{-4}$ appears when the Yukawa couplings of leptons are close to the perturbative limit. Some interesting properties of these regions of parameter space are also discussed.

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。

↑