3 papers
astro-ph.CO2026
Gravitational Waves from First-Order Phase Transitions Assisted by Temperature-Enhanced Scatterings
Arnab Chaudhuri
Scatterings whose cross sections increase as the cosmic temperature decreases, known as temperature - enhanced scatterings, can have a significant impact on the thermal effective p…
hep-ph2025
Electroweak Phase Transition, Gravitational Waves and Collider Probes in Multi-Scalar Dark Matter Scenarios
Tripurari Srivastava, Jaydeb Das, Anupam Ghosh +1
We study scalar singlet extensions of the Standard Model (SM), focusing on scenarios where dark matter (DM) is stabilized by a \(\mathbb{Z}_2\) symmetry. In the minimal single-scal…
hep-ph2025
EFT of Non-Markovian Breaking: Dark Matter and Gravitational Waves
Arnab Chaudhuri
We develop an effective field theory (EFT) framework for gauge symmetry breaking in which the dynamics of the order parameter acquire non-local-in-time (``memory'') correc…