46 citations · 55 across the 2 of their papers we have counts for
4 papers
Test of Kerr-Sen metric with black hole observations
Ashish Narang, Subhendra Mohanty, Abhass Kumar
The Kerr-Sen black hole is a rotating charged black hole solution arising from heterotic string theory. In 4-dimensions effective theory the bosonic fields are: a gauge boso…
Soft leptogenesis in the NMSSM with a singlet right-handed neutrino superfield
Waleed Abdallah, Abhass Kumar, Abhijit Kumar Saha
In this work, we explore soft leptogenesis in the NMSSM framework extended by a right-handed neutrino superfield. We calculate the CP asymmetry, , and find it to be no…
Inflation and Reheating with a Fermionic Field
Abhass Kumar
Inflation has long been the accepted paradigm for understanding the early universe. Most models of inflation have a scalar field acting as the inflaton particle which decays after…
Inflation and Dark Matter in the Inert Doublet Model
Sandhya Choubey, Abhass Kumar
We discuss inflation and dark matter in the inert doublet model coupled non-minimally to gravity where the inert doublet is the inflaton and the neutral scalar part of the doublet…