518 citations · 3.6k across the 129 of their papers we have counts for
5 papers · 1 filter
Baryogenesis in a supersymmetric model without R-parity
Rathin Adhikari, Utpal Sarkar
We propose a simple scenario for baryogenesis in supersymmetric models where baryon number is broken alongwith R-parity. The lightest supersymmetric particle (neutralino) decays to…
Spontaneous Leptogenesis
Utpal Sarkar
I propose a new mechanism for baryogenesis, in which the out-of-equilibrium condition is not neccessary. When the electroweak symmetry is broken spontaneously, left-handed neutrino…
Baryogenesis through R-parity violation
Utpal Sarkar, Rathin Adhikari
We consider generation of baryon asymmetry of the universe through parity violation in a scenario in which out-of-equilibrium condition is satisfied by making the electroweak p…
Baryogenesis Through Mixing of Heavy Majorana Neutrinos
Marion Flanz, Emmanuel A. Paschos, Utpal Sarkar +1
A mechanism is presented, in which the mixing of right handed heavy Majorana neutrinos creates a asymmetric universe. When these Majorana neutrinos subsequently decay more lep…
Electroweak Baryogenesis and Constraints on Left-handed Majorana Neutrino Masses
Utpal Sarkar
The lepton number violating interactions generated by the light Majorana neutrinos can erase the primordial baryon asymmetry of the universe during the electroweak phase transition…