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Unification of gauge couplings in radiative neutrino mass models
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2016 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 9, 111Article in journal (Refereed) Published
Abstract [en]

We investigate the possibility of gauge coupling uni fi cation in various radiative neutrino mass models, which generate neutrino masses at one-and/or two-loop level. Renormalization group running of gauge couplings is performed analytically and numerically at one-and two-loop order, respectively. We study three representative classes of radiative neutrino mass models: (I) minimal ultraviolet completions of the dimension-7 Delta L = 2 operators which generate neutrino masses at one-and/or two-loop level without and with dark matter candidates, (II) models with dark matter which lead to neutrino masses at one-loop level and (III) models with particles in the adjoint representation of SU(3). In class (I), gauge couplings unify in a few models and adding dark matter amplifies the chances for uni fi cation. In class (II), about a quarter of the models admits gauge coupling uni fi cation. In class (III), none of the models leads to gauge coupling uni fi cation. Regarding the scale of uni fi cation, we find values between 10(14) GeV and 10(16) GeV for models belonging to class (I) without dark matter, whereas models in class (I) with dark matter as well as models of class (II) prefer values in the range 5.10(10) - 5.10(14) GeV.

Place, publisher, year, edition, pages
Springer, 2016. no 9, 111
Keyword [en]
GUT, Renormalization Group, Effective field theories, Neutrino physics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-194473DOI: 10.1007/JHEP09(2016)111ISI: 000384605700001ScopusID: 2-s2.0-84988514181OAI: oai:DiVA.org:kth-194473DiVA: diva2:1043671
Funder
Swedish Research Council, 621-2011-3985
Note

QC 20161031

Available from: 2016-10-31 Created: 2016-10-28 Last updated: 2016-11-01Bibliographically approved

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