3 papers
hep-ph2026
Standard Model Baryon Number Violation at Zero Temperature from Higgs Bubble Collisions
Nabeen Bhusal, Simone Blasi, Martina Cataldi +3
We compute for the first time baryon number violation at zero temperature from Higgs bubble collisions and find that it can be of the same order as that from thermal sphalerons in…
hep-ph2025
CP-violation in production of heavy neutrinos from bubble collisions
Martina Cataldi, Kristjan Müürsepp, Miguel Vanvlasselaer
First order phase transitions (FOPT) in the early Universe can be powerful emitters of both relativistic and heavy particles, upon the collision of ultra-relativistic bubble shells…
hep-ph2025
ALP leptogenesis
Martina Cataldi, Alberto Mariotti, Filippo Sala +1
We propose a novel realisation of leptogenesis that relies on the out-of-equilibrium decay of an axion-like particle (ALP) into right-handed Majorana neutrinos (RHNs) in the early…