Speaker
Dr
P. S. Bhupal Dev
(University of Manchester)
Description
A new scenario for baryogenesis, termed post-sphaleron baryogenesis (PSB), has been proposed wherein the baryon asymmetry of the universe
is produced below the electroweak phase transition temperature after the sphaleron processes have gone out of equilibrium. This mechanism arises
naturally in quark-lepton unied models. A necessary consequence of this scenario is the baryon number violating B = 2
process of neutron-antineutron oscillations. We show that the constraints of PSB, when combined with the neutrino oscillation data and restrictions from flavor changing neutral currents imply an upper limit on the n-nbar oscillation time, which is accessible to the
next generation of proposed experiments.
Author
Dr
P. S. Bhupal Dev
(University of Manchester)
