论文标题

辐射锯校正校正和带电的lepton腐烂,易受侵犯风味的模型

Radiative seesaw corrections and charged-lepton decays in a model with soft flavour violation

论文作者

Aeikens, E. H., Ferreira, P. M., Grimus, W., Jurčiukonis, D., Lavoura, L.

论文摘要

We consider the one-loop radiative corrections to the light-neutrino mass matrix and their consequences for the predicted branching ratios of the five lepton-flavour-violating decays $\ell_1^- \to \ell_2^- \ell_3^+ \ell_3^-$ in a two-Higgs-doublet model furnished with the type-I seesaw mechanism and soft lepton-flavour 违反。我们发现辐射校正非常重要。他们可能会通过几个数量级来改变预测的分支比例,尤其可以帮助解释为什么$ \ mbox {br}(μ^ - \ \ to e^ - e^+ e^ - )$相对于$τ^ - $的衰减的分支比率得到了强烈抑制。我们得出的结论是,在对该模型预测的任何严重的数值评估中,绝对有必要考虑到光辐射质量矩阵的一环辐射校正。

We consider the one-loop radiative corrections to the light-neutrino mass matrix and their consequences for the predicted branching ratios of the five lepton-flavour-violating decays $\ell_1^- \to \ell_2^- \ell_3^+ \ell_3^-$ in a two-Higgs-doublet model furnished with the type-I seesaw mechanism and soft lepton-flavour violation. We find that the radiative corrections are very significant; they may alter the predicted branching ratios by several orders of magnitude and, in particular, they may help explain why $\mbox{BR}(μ^- \to e^- e^+ e^-)$ is strongly suppressed relative to the branching ratios of the decays of the $τ^-$. We conclude that, in any serious numerical assessment of the predictions of this model, it is absolutely necessary to take into account the one-loop radiative corrections to the light-neutrino mass matrix.

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