The Grimus–Neufeld Model with FlexibleSUSY at One-Loop
by
Simonas Draukšas, Vytautas Dūdėnas, Thomas Gajdosik *
, Andrius Juodagalvis, Paulius Juodsnukis and Darius Jurčiukonis
Simonas Draukšas, Vytautas Dūdėnas, Thomas Gajdosik *, Andrius Juodagalvis, Paulius Juodsnukis and Darius Jurčiukonis
Institute of Theoretical Physics and Astronomy, Faculty of Physics, Vilnius University, Saulėtekio av. 3, 10257 Vilnius, Lithuania
*
Author to whom correspondence should be addressed.
Symmetry 2019, 11(11), 1418; https://doi.org/10.3390/sym11111418
Received: 28 October 2019 / Revised: 11 November 2019 / Accepted: 12 November 2019 / Published: 16 November 2019
(This article belongs to the Special Issue Selected Papers from 43rd International Conference of Theoretical Physics: Matter to the Deepest, Recent Developments In Physics Of Fundamental Interactions (MTTD2019))
The Grimus–Neufeld model can explain the smallness of measured neutrino masses by extending the Standard Model with a single heavy neutrino and a second Higgs doublet, using the seesaw mechanism and radiative mass generation. The Grimus–Lavoura approximation allows us to calculate the light neutrino masses analytically. By inverting these analytic expressions, we determine the neutrino Yukawa couplings from the measured neutrino mass differences and the neutrino mixing matrix. Short-cutting the full renormalization of the model, we implement the Grimus–Neufeld model in the spectrum calculator FlexibleSUSY and check the consistency of the implementation. These checks hint that FlexibleSUSY is able to do the job of numerical renormalization in a restricted parameter space. As a summary, we also comment on further steps of the implementation and the use of FlexibleSUSY for the model.
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Keywords:
neutrinos; seesaw mechanism; radiative masses; spectrum calculator
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MDPI and ACS Style
Draukšas, S.; Dūdėnas, V.; Gajdosik, T.; Juodagalvis, A.; Juodsnukis, P.; Jurčiukonis, D. The Grimus–Neufeld Model with FlexibleSUSY at One-Loop. Symmetry 2019, 11, 1418.
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