64 citations · 167 across the 9 of their papers we have counts for
9 papers
Anomaly Mediation and Cosmology
A. Basboll, M. Hindmarsh, D. R. T. Jones
We consider an extension of the MSSM wherein anomaly mediation is the source of supersymmetry breaking, and the tachyonic slepton problem is solved by a gauged U(1) symmetry, which…
SUSY Flat Directions -- to get a VEV or not?
Anders Basboll
We investigate the potential of SUSY flat directions (FDs). Large FD vacuum expectation values (VEVs) can delay thermalisation and solve the gravitino problem - if FDs decay pertur…
MSSM superpotential to 6th order - normalised and with no superfluous couplings
Anders Basboll
We expand the superpotential of MSSM to 6th order. This is the order at which all flat directions can be lifted. All 5179 couplings are independent ie. the superpotential cannot…
Decaying neutrinos: The long way to isotropy
Anders Basboll, Ole Eggers Bjaelde
We investigate a scenario in which neutrinos are coupled to a pseudoscalar degree of freedom $\ph$ and where decays $ν_1 \to ν_2+\ph$ and inverse decays are the responsible mechani…
A complete and minimal catalogue of MSSM gauge invariant monomials
Anders Basboll
We present a complete and minimal catalogue of MSSM gauge invariant monomials. That is, the catalogue of Gherghetta, Kolda and Martin is elaborated to include generational structur…
Are cosmological neutrinos free-streaming?
Anders Basboll, Ole Eggers Bjaelde, Steen Hannestad +1
Precision data from cosmology suggest neutrinos stream freely and hence interact very weakly around the epoch of recombination. We study this issue in a simple framework where neut…
SUSY Flat Direction Decay - the prospect of particle production and preheating investigated in the unitary gauge
Anders Basboll
We look at the possibility of non-perturbative particle production after inflation from SUSY flat directions produced by rotating eigenstates thereby avoiding the standard adiabati…
Non-Perturbative Flat Direction Decay
Anders Basboll, David Maybury, Francesco Riva +1
We argue that supersymmetric flat direction vacuum expectation values can decay non-perturbatively via preheating. Considering a toy U(1) gauge theory, we explicitly calculate the…
Decay of heavy Majorana neutrinos using the full Boltzmann equation including its implications for leptogenesis
Anders Basboll, Steen Hannestad
We have studied the two-body production and decay of a heavy, right-handed neutrino to two light states using the full Boltzmann equation instead of the usual integrated Boltzmann…