Many high-charged scalars in LHC searches and Majorana neutrino mass generations

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Title:	Many high-charged scalars in LHC searches and Majorana neutrino mass generations
Authors:	Chen, Chian-Shu;Geng, Chao-Qiang;Tsai, Lu-Hsing
Date:	2013-08-17
Issue Date:	2016-11-12 02:10:45 (UTC+8)
Publisher:	American Physical Society
Abstract:	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 two-loop level without imposing any new symmetry. In these models, multi scalars with the 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 also changes similar to that of the diphoton channel.
Relation:	Physical Review D 87:077702
DOI:	10.1103/PhysRevD.87.077702
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

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