Neutrino mass generation and H → γγ/Zγ correlation with scalar multiplets

Chen, Chian-Shu and Geng, Chao-Qiang and Huang, Da and Tsai, Lu-Hsing (2013) Neutrino mass generation and H → γγ/Zγ correlation with scalar multiplets. Il nuovo cimento C, 36 (6). pp. 79-85. ISSN 1826-9885

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One natural way to understand the excess of the measured H → γγ rate over the standard model (SM) expectation at the Large Hadron Collider (LHC) is to have charged scalar bosons, existing in most of the SM extensions. Motivated by this LHC result, we explore if it also sheds light on solving the small neutrino mass generation problem. We concentrate on a class of models with high-dimensional representations of scalars to realize Majorana neutrino masses at the two-loop level without imposing any new symmetry. In these models, multi scalars with electric charges higher than two are naturally expected, which not only enhance the H → γγ rate, but provide more searching grounds at the LHC. In particular, the rate of H → Zγ is also correlated to that of the diphoton channel.

Item Type: Article
Uncontrolled Keywords: Extensions of electroweak Higgs Sector ; Neutrino mass and mixing ; Standard-model Higgs bosons ; Other charged Higgs bosons
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 07 May 2020 15:43
Last Modified: 07 May 2020 15:43

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