10 papers
Radiative seesaw in left-right symmetric model
Pei-Hong Gu, Utpal Sarkar
There are some radiative origins for the neutrino masses in the conventional left-right symmetric models with the usual bi-doublet and triplet Higgs scalars. These radiative contri…
Importance of neutrinoless double beta decay
Utpal Sarkar
A natural explanation for the smallness of the neutrino mass requires them to be Majorana particles violating lepton number by two units. Since lepton number violation can have sev…
Radiative Neutrino Mass, Dark Matter and Leptogenesis
Pei-Hong Gu, Utpal Sarkar
We propose an extension of the standard model, in which neutrinos are Dirac particles and their tiny masses originate from a one-loop radiative diagram. The new fields required by…
Left-Right Symmetric Model of Neutrino Dark Energy
Jitesh R. Bhatt, Pei-Hong Gu, Utpal Sarkar +1
We implemented the neutrino dark energy proposal in a left-right symmetric model. Unlike earlier models of mass varying neutrinos, in the present model the mass parameter that depe…
SO(10) GUT Baryogenesis
Pei-Hong Gu, Utpal Sarkar
Baryogenesis, through the decays of heavy bosons, was considered to be one of the major successes of the grand unified theories (GUTs). It was then realized that the sphaleron proc…
Realistic Neutrinogenesis with Radiative Vertex Correction
Pei-Hong Gu, Hong-Jian He, Utpal Sarkar
We propose a new model for naturally light Dirac neutrinos and explain the baryon asymmetry of the universe through neutrinogenesis. We extend the standard model with a real single…