English

Leptonic Flavor Structure in the Brane Shifted Extra Dimensional Seesaw Mechanism

High Energy Physics - Phenomenology 2022-10-19 v2

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 3×33 \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 μeγ\mu \rightarrow e \gamma close to the experimental bounds even with Yukawa couplings of order one.

Keywords

Cite

@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