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LHC signals of radiatively-induced neutrino masses and implications for the Zee-Babu model

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LHC signals of radiatively-induced neutrino masses and implications for the Zee-Babu model

dc.contributor.author	Alcaide, Julien
dc.contributor.author	Chala, Mikael
dc.contributor.author	Santamaria, Arcadi
dc.date.accessioned	2019-01-16T15:04:18Z
dc.date.available	2019-01-16T15:04:18Z
dc.date.issued	2018
dc.identifier.uri	http://hdl.handle.net/10550/68503
dc.description.abstract	Contrary to the see-saw models, extended Higgs sectors leading to radiatively-induced neutrino masses do require the extra particles to be at the TeV scale. However, these new states have often exotic decays, to which experimental LHC searches performed so far, focused on scalars decaying into pairs of same-sign leptons, are not sensitive. In this paper we show that their experimental signatures can start to be tested with current LHC data if dedicated multi-region analyses correlating different observables are used. We also provide high-accuracy estimations of the complicated Standard Model backgrounds involved. For the case of the Zee-Babu model, we show that regions not yet constrained by neutrino data and low-energy experiments can be already probed, while most of the parameter space could be excluded at the 95% C.L. in a high-luminosity phase of the LHC.
dc.language.iso	eng
dc.relation.ispartof	Physics Letters B, 2018, vol. 779, p. 107-116
dc.source	Alcaide, Julien Chala, Mikael Santamaria, Arcadi 2018 LHC signals of radiatively-induced neutrino masses and implications for the Zee-Babu model Physics Letters B 779 107 116
dc.subject	Partícules (Física nuclear)
dc.title	LHC signals of radiatively-induced neutrino masses and implications for the Zee-Babu model
dc.type	journal article	es_ES
dc.date.updated	2019-01-16T15:04:19Z
dc.identifier.doi	https://doi.org/10.1016/j.physletb.2018.02.001
dc.identifier.idgrec	127701
dc.rights.accessRights	open access	es_ES