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 3×3 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 μ→eγ close to the experimental bounds even with Yukawa couplings of order one.
@article{arxiv.1707.02882,
title = {Leptonic Flavor Structure in the Brane Shifted Extra Dimensional Seesaw Mechanism},
author = {Mathias Becker and Heinrich Päs},
journal= {arXiv preprint arXiv:1707.02882},
year = {2022}
}
Comments
13 pages plus appendix and references, 4 figures. v2: version accepted by EPJC