179 citations · 457 across the 11 of their papers we have counts for
11 papers
Thermal masses in leptogenesis
Clemens P. Kiessig, Michael Plumacher
We investigate the validity of using thermal masses in the kinematics of final states in the decay rate of heavy neutrinos in leptogenesis calculations. We find that using thermal…
Full Boltzmann equations for leptogenesis including scattering
F. Hahn-Woernle, M. Plumacher, Y. Y. Y. Wong
We study the evolution of a cosmological baryon asymmetry produced via leptogenesis by means of the full classical Boltzmann equations, without the assumption of kinetic equilibriu…
Effects of reheating on leptogenesis
F. Hahn-Woernle, M. Plumacher
We study the evolution of a cosmological baryon asymmetry in leptogenesis when the right-handed neutrinos are produced in inflaton decays. By performing a detailed numerical study…
Remarks on the high-energy behaviour of cross-sections in weak-scale string theories
M. Kachelriess, M. Plumacher
We consider the high-energy behaviour of processes involving Kaluza-Klein (KK) gravitons of weak-scale string theories. We discuss how form-factors derived within string theory mod…
Stable Superstring Relics and Ultrahigh Energy Cosmic Rays
Claudio Coriano, Alon E. Faraggi, Michael Plumacher
One of the most intriguing experimental results of recent years is the observation of Ultrahigh Energy Cosmic Rays (UHECRs) above the GZK cutoff. Plausible candidates for the UHECR…
Neutrino masses and the baryon asymmetry
W. Buchmüller, M. Plümacher
Due to sphaleron processes in the high-temperature symmetric phase of the standard model the cosmological baryon asymmetry is related to neutrino properties. For hierarchical neutr…