6 papers
Phase Structure and Gravitational-Wave Phenomenology of a Thermal First-Order Phase Transition
Gayatri Ghosh
We investigate the phase structure and gravitational-wave (GW) phenomenology of a cosmological first-order phase transition described by the finite-temperature effective potential…
Quantum-Kinetic Leptogenesis and Gravitational Waves from Seesaw-Assisted Domain-Wall Dynamics
Gayatri Ghosh
We investigate the connection between resonant leptogenesis and a primordial stochastic gravitational-wave background in a minimal two-right-handed-neutrino type-I seesaw with a re…
Neutrino Oscillations as an Open Quantum System in Strong Gravitational Fields: Spin-Connection Decoherence and Kerr Frame Dragging
Gayatri Ghosh
We investigate neutrino flavor evolution in strong gravitational fields within an open-quantum-system framework in curved spacetime. Starting from the Dirac equation in the vierbei…
Pseudo-Goldstone Neutrinos and Majoron Phenomenology from Spontaneous Breaking
Gayatri Ghosh
We present a predictive framework for neutrino mass generation based on the spontaneous breaking of a leptonic symmetry within a supersymmetric setting. The breaki…
Hybrid Type-I and Type-II Leptogenesis in Minimal Renormalizable
Gayatri Ghosh
We investigate flavoured hybrid leptogenesis in a minimal renormalizable framework in which both Type-I and Type-II seesaw interactions contribute to the generati…
Radiative Corrections and Renormalization of Neutrino Mass Operators in Type II Seesaw Models
Gayatri Ghosh
We explore the impact of radiative corrections on the renormalization of neutrino mass operators in the Type II Seesaw framework, incorporating both dimension-five and dimens…