518 citations · 3.6k across the 129 of their papers we have counts for
7 papers · 2 filters
Neutrino Dark Energy in Grand Unified Theories
Jitesh R. Bhatt, Pei-Hong Gu, Utpal Sarkar +1
We studied a left-right symmetric model that can accommodate the neutrino dark energy (\nd) proposal. Type III seesaw mechanism is implemented to give masses to the neutrinos. Afte…
Gravitational correction to SU(5) gauge coupling unification
Jitesh R. Bhatt, Sudhanwa Patra, Utpal Sarkar
The gravitational corrections to the gauge coupling constants of abelian and non-abelian gauge theories has been shown to diverge quadratically. Since this result will have interes…
Pathways to testable leptogenesis
Pei-Hong Gu, Utpal Sarkar
In the conventional seesaw models of neutrino masses, leptogenesis occurs at a very high scale. Three approaches have been discussed in the literature to lower the scale of leptoge…
Neutrino masses, leptogenesis and dark matter in hybrid seesaw
Pei-Hong Gu, M. Hirsch, Utpal Sarkar +1
We suggest a hybrid seesaw model where relatively ``light''right-handed neutrinos give no contribution to the neutrino mass matrix due to a special symmetry. This allows their Yuka…
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…
Majorana Neutrino Superfluidity and Stability of Neutrino Dark Energy
Jitesh R. Bhatt, Utpal Sarkar
We demonstrate that Majorana neutrinos can form Cooper pairs due to long-range attractive forces and show BCS superfluidity in a class of mass varying neutrino dark energy models.…
Extended Zee model for Neutrino Mass, Leptogenesis and Sterile Neutrino like Dark Matter
Narendra Sahu, Utpal Sarkar
We propose an extension of the standard model with a global symmetry that accommodates radiative neutrino masses along with dark matter and leptogenesis. The obser…