Electroweak baryogenesis in a left–right supersymmetric model

The possibility of electroweak baryogenesis is considered within the framework of a left–right supersymmetric model. It is shown that for a range of parameters the large sneutrino VEV required for parity breaking varies at the electroweak phase transition leading to a production of baryons. The resulting baryon to entropy ratio is approximated to be nB/s∼α 0.7×10−8, where α is the angle that the phase of sneutrino VEV changes at the electroweak phase transition.