Type II seesaw mechanism for Higgs doublets and the scale of new physics

Autor(en)

Walter Grimus, Luis Lavoura, B Radovčić

Abstrakt

We elaborate on an earlier proposal by Ernest Ma of a type II seesaw mechanism for suppressing the vacuum expectation values of some Higgs doublets. We emphasize that, by nesting this form of seesaw mechanism into various other seesaw mechanisms, one may obtain light neutrino masses in such a way that the new-physics scale present in the seesaw mechanism—the masses of scalar gauge-SU(2) triplets, scalar SU(2) doublets, or right-handed neutrinos—does not need to be higher than a few 10 TeV. We also investigate other usages of the type II seesaw mechanism for Higgs doublets. For instance, the suppression of the vacuum expectation values of Higgs doublets may realize Froggatt–Nielsen suppression factors in some entries of the fermion mass matrices.

Organisation(en)

Teilchenphysik

Externe Organisation(en)

Universidade Técnica de Lisboa, University of Zagreb

Journal

Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics

Band

674

Seiten

117-121

Anzahl der Seiten

5

ISSN

0370-2693

DOI

https://doi.org/10.1016/j.physletb.2009.03.016

Publikationsdatum

2009

Peer-reviewed

Ja

ÖFOS 2012

103036 Theoretische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/type-ii-seesaw-mechanism-for-higgs-doublets-and-the-scale-of-new-physics(fcedb211-57e4-47ac-aa6e-dcb9acb0d8f8).html