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arXiv · 1707.02882

Leptonic Flavor Structure in the Brane Shifted Extra Dimensional Seesaw Mechanism

Mathias Becker·Heinrich Päs
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Abstract

We discuss the leptonic flavor structure generated by a brane shifted extra dimensional seesaw model with a single right handed neutrino in the bulk. In contrast to previous works, no unitarity approximation for the $3 \times 3$ submatrix has been employed. This allows to study phenomenological signatures such as lepton flavor violating decays. A strong prediction of the model, assuming CP conservation, are the ratios of flavor violating charged lepton decay and Z decay branching ratios which are correlated with the neutrino mixing angles and the neutrino mass hierarchy. Furthermore, it is possible to obtain branching ratios for $\mu \rightarrow e \gamma$ close to the experimental bounds even with Yukawa couplings of order one.

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Mathias Becker, Heinrich Päs. 2017-07-10. Leptonic Flavor Structure in the Brane Shifted Extra Dimensional Seesaw Mechanism. https://doi.org/10.1140/epjc/s10052-018-5756-6

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