Inverse seesaw model with large $SU(2)_L$ multiplets and natural mass hierarchy
High Energy Physics - Phenomenology
2019-04-10 v2
Abstract
We propose an inverse seesaw model with large multiplet fields which realizes natural mass hierarchies among neutral fermions. Here, lighter neutral fermion mass matrices are induced via two suppression mechanisms; one is small vacuum expectation value of triplet required by rho parameter constraint and the other is generation of Majorana mass term of extra singlet fermions at one-loop level. To realize the loop masses, we impose symmetry which also guarantees stability of a dark matter candidate. Furthermore, we discuss anomalous magnetic moment and collider physics from interactions of large multiplet fields.
Keywords
Cite
@article{arxiv.1809.06039,
title = {Inverse seesaw model with large $SU(2)_L$ multiplets and natural mass hierarchy},
author = {Takaaki Nomura and Hiroshi Okada},
journal= {arXiv preprint arXiv:1809.06039},
year = {2019}
}
Comments
17 pages, 2 tables, 5 figures, accepted version for publication in Physics Letters B