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arXiv 1206.6497hep-ph
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超对称反跷跷板中偶极贡献以外轻子味破坏的增强

Enhancing lepton flavour violation in the supersymmetric inverse seesaw beyond the dipole contribution

Asmaa Abada, Debottam Das, Avelino Vicente, Cédric Weiland

摘要:

在极小超对称模型中,$Z$ -企鹅模型通常对带电轻子味违反观测量提供次主导贡献。在这项研究中,我们考虑了超对称逆跷跷板,其中的非最小粒子含量允许占主导地位的贡献的$Z$ -企鹅几个轻子味违反可观的。特别是,由于低尺度(TeV)的跷跷板,企鹅的贡献,例如,$\Br(μ\to 3e)$和$μ-e$转换的核,允许在未来的灵敏度范围内呈现这些观测。此外,我们表明,在这个框架中,$Z$ -企鹅表现出相同的非解耦行为,以前已确定在味道违反希格斯衰变的最小超对称标准模型。

英文摘要:

In minimal supersymmetric models the $Z$-penguin usually provides sub-dominant contributions to charged lepton flavour violating observables. In this study, we consider the supersymmetric inverse seesaw in which the non-minimal particle content allows for dominant contributions of the $Z$-penguin to several lepton flavour violating observables. In particular, and due to the low-scale (TeV) seesaw, the penguin contribution to, for instance, $\Br(μ\to 3e)$ and $μ-e$ conversion in nuclei, allows to render some of these observables within future sensitivity reach. Moreover, we show that in this framework, the $Z$-penguin exhibits the same non-decoupling behaviour which had previously been identified in flavour violating Higgs decays in the Minimal Supersymmetric Standard Model.

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