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A Minimal Supersymmetric Model of Particle Physics and the Early Universe
Wilfried Buchmüller, Valerie Domcke, Kohei Kamada +1
We consider a minimal supersymmetric extension of the Standard Model, with right-handed neutrinos and local B-L, the difference between baryon and lepton number, a symmetry which i…
The Peccei-Quinn Symmetry from a Gauged Discrete R Symmetry
Keisuke Harigaya, Masahiro Ibe, Kai Schmitz +1
The axion solution to the strong CP problem calls for an explanation as to why the Lagrangian should be invariant under the global Peccei-Quinn symmetry, U(1)_PQ, to such a high de…
The B-L Phase Transition: Implications for Cosmology and Neutrinos
Kai Schmitz
We investigate the possibility that the hot thermal phase of the early universe is ignited in consequence of the B-L phase transition, which represents the cosmological realization…
The Gravitational Wave Spectrum from Cosmological B-L Breaking
Wilfried Buchmuller, Valerie Domcke, Kohei Kamada +1
Cosmological B-L breaking is a natural and testable mechanism to generate the initial conditions of the hot early universe. If B-L is broken at the grand unification scale, the fal…
A Simple Solution to the Polonyi Problem in Gravity Mediation
Keisuke Harigaya, Masahiro Ibe, Kai Schmitz +1
The Polonyi field is a necessary ingredient in any viable scenario of gravity mediated supersymmetry breaking. However, it is known that the presence of the Polonyi field leads to…