2 papers
hep-ph2026
Particle production from bubble collisions
Anish Ghoshal, Pratyay Pal, Alessandro Strumia
Collisions of ultra-relativistic bubbles during cosmological phase transitions can produce particles much heavier than the transition scale. Previous analyses modelled this process…
astro-ph.CO2026
Cosmic Collider Gravitational Waves sourced by Right-handed Neutrino production from Bubbles: Testing Seesaw, Leptogenesis and Dark Matter
Anish Ghoshal, Pratyay Pal
We study a minimal type-I seesaw framework in which a first-order phase transition (FOPT), driven by a singlet scalar, produces right-handed neutrinos (RHNs) through bubble collisi…