48 citations · 140 across the 8 of their papers we have counts for
8 papers
Leptogenesis in with a Universal Texture Zero
Fredrik Björkeroth, Ivo de Medeiros Varzielas, M. L. López-Ibáñez +2
We investigate the possibility of viable leptogenesis in an appealing model with a universal texture zero in the (1,1) entry. The model accommodates the mass spectrum, mixi…
Accidental Peccei-Quinn Symmetry from Discrete Flavour Symmetry and Pati-Salam
Fredrik Björkeroth, Eung Jin Chun, Stephen F. King
We show how an accidental Peccei-Quinn (PQ) symmetry can arise from a discrete family symmetry combined with a discrete flavour symmetry $ \mathbb{Z}_3 \times \mathbb{…
Towards a complete SUSY GUT
F. Björkeroth
I discuss a renormalisable model based on family symmetry with an grand unified theory (GUT) with spontaneous geometrical violation. The symmetries are broken…
Leptogenesis in a SUSY GUT
Fredrik Björkeroth, Francisco J. de Anda, Ivo de Medeiros Varzielas +1
Although Supersymmetric (SUSY) Grand Unification Theories (GUTs) are very attractive for neutrino mass and mixing, it is often quite difficult to achieve successful leptog…
Leptogenesis after Chaotic Sneutrino Inflation and the Supersymmetry Breaking Scale
Fredrik Björkeroth, Stephen F. King, Kai Schmitz +1
We discuss resonant leptogenesis arising from the decays of two nearly-degenerate right-handed neutrinos, identified as the inflaton and stabiliser superfields in a model of chaoti…
Towards a complete SUSY GUT
Fredrik Björkeroth, Francisco J. de Anda, Ivo de Medeiros Varzielas +1
We propose a renormalisable model based on family symmetry with an grand unified theory (GUT) leading to a novel form of spontaneous geometrical CP violation. The…
Leptogenesis in minimal predictive seesaw models
Fredrik Björkeroth, Francisco J. de Anda, Ivo de Medeiros Varzielas +1
We estimate the Baryon Asymmetry of the Universe (BAU) arising from leptogenesis within a class of minimal predictive seesaw models involving two right-handed neutrinos and simple…
Testing constrained sequential dominance models of neutrinos
Fredrik Björkeroth, Stephen F. King
Constrained sequential dominance (CSD) is a natural framework for implementing the see-saw mechanism of neutrino masses which allows the mixing angles and phases to be accurately p…