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

Walter Grimus; Luis Lavoura; B Radovčić

doi:10.1016/j.physletb.2009.03.016

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

Walter Grimus
, Luis Lavoura
, B Radovčić

Teilchenphysik

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

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.

Originalsprache	Englisch
Seiten (von - bis)	117-121
Seitenumfang	5
Fachzeitschrift	Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
Jahrgang	674
Ausgabenummer	2
DOIs	https://doi.org/10.1016/j.physletb.2009.03.016
Publikationsstatus	Veröffentlicht - 2009

ÖFOS 2012

103036 Theoretische Physik

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10.1016/j.physletb.2009.03.016

http://arxiv.org/abs/0902.2325

Zitationsweisen

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AU - Lavoura, Luis

AU - Radovčić, B

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AB - 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.

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

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

IS - 2

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

Abstract

ÖFOS 2012

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