Apr 18 – 22, 2011
Palais des Papes, Avignon
Europe/Paris timezone

Supersonic Electroweak Baryogenesis: Achieving Baryogenesis from Fast Bubble Walls

Apr 19, 2011, 2:30 PM
20m
Chambre du Trésorier (Palais des Papes, Avignon)

Chambre du Trésorier

Palais des Papes, Avignon

Speaker

Dr Jose Miguel No (IPhT CEA Saclay)

Description

It is widely assumed that for the Electroweak Baryogenesis mechanism to be effective in generating the baryon asymmetry of the Universe, the first order phase transition bubbles have to expand at a subsonic speed (in order to allow for the diffusion of CP asymmetric currents in front of the wall). Here we present a new mechanism for Electroweak Baryogenesis that is effective for supersonic bubble walls, and relies on the formation of small bubbles of symmetric phase in the plasma behind the bubble wall (which is in the broken phase) due to the heating of the plasma as the wall passes by.

Primary authors

Dr Chiara Caprini (IPhT CEA Saclay) Dr Jose Miguel No (IPhT CEA Saclay)

Presentation materials