Title The one-loop improved Lagrangian of the Grimus-Neufeld model /
Authors Dūdėnas, Vytautas ; Gajdosik, Thomas ; Juodagalvis, Andrius ; Jurčiukonis, Darius
DOI 10.5506/APhysPolB.48.2235
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Is Part of Acta physica Polonica B.. Kraków : Jagiellonian University. 2017, Vol. 48, No. 12, p. 2235-2242.. ISSN 0587-4254. eISSN 1509-5770
Keywords [eng] Neutrino physics ; Two Higgs doublet model ; Radiative neutrino masses
Abstract [eng] Adding a single gauge singlet fermion and a second Higgs doublet to the original Standard Model allows an explanation for the observed smallness of the neutrino masses using the seesaw mechanism. This model predicts two neutral fermions with vanishing mass. The one-loop contribution to the neutral fermion masses due to the second Higgs doublet lifts this degeneracy and allows to fit the model parameters to the observed neutrino mass differences. We determine the values of the additional Yukawa couplings by requiring the correct prediction of the mass differences and mixings in the neutrino sector. We also discuss the ambiguities of the model parameters.
Published Kraków : Jagiellonian University
Type Journal article
Language English
Publication date 2017