Speaker
Dr
Martin Winkler
(Stockholm University)
Description
Many string compactifications predict the existence of a scalar field (modulus) with a mass of 100-10000 TeV. In the early universe its decay (at MeV-temperatures) generates large amounts of entropy and washes out any previously produced baryon asymmetry. I describe how the baryon asymmetry can be (re)generated by the modulus decay. The mechanism relates the smallness of the asymmetry to the hierarchy between the Planck- and the Fermi-scale.
Primary author
Dr
Martin Winkler
(Stockholm University)
