10 papers
Enlightening dark moments of neutrino with superradiance
Indra Kumar Banerjee, Ujjal Kumar Dey, Anna John
Neutrinos can acquire electromagnetic moments either within the Standard Model through higher order radiative corrections or within the domain of new physics. In this study we focu…
Primordial Black Holes from Slow Phase Transitions with Delayed Reheating: A Peak-Theory Approach
Indra Kumar Banerjee
We study the possibility of significant PBH production from a slow first-order phase transition with delayed reheating. Since delayed reheating results in an early matter-dominated…
Mini-review on the production of Primordial Black Holes from First-Order Phase Transitions in the Early Universe
Indra Kumar Banerjee, Ujjal Kumar Dey, Shaaban Khalil
We review the creation mechanism of primordial black holes from first order phase transitions. We discuss various model-dependent and independent mechanisms and relate the properti…
Radiative symmetry breaking in a gauged Zee-Babu model and its gravitational wave imprints
Indra Kumar Banerjee, Nabarun Chakrabarty, Ujjal Kumar Dey
We construct a classically scale invariant version of the Zee-Babu model governed by an gauge symmetry wherein three right handed neutrinos with identical gauge charge…
Superradiant and dynamical spin-down of neutron stars with gravitational wave implications
Indra Kumar Banerjee, Sandeep Chatterjee, Biswarup Das +1
Neutron stars such as pulsars and magnetars lose angular momentum primarily through electromagnetic dipole radiation, gravitational waves, -mode oscillation, and also affected b…
Neutrino Decoherence via Modified Dispersion
Bikash Kumar Acharya, Indra Kumar Banerjee, Ujjal Kumar Dey
We study in detail the effect of quantum decoherence in neutrino oscillations. We adopt a phenomenological approach that allows us to parametrize the energy dependence of the decoh…