97 citations · 126 across the 7 of their papers we have counts for
5 papers · 1 filter
DW-genesis: baryon number from domain wall network collapse
Alberto Mariotti, Xander Nagels, Aäron Rase +1
Axionic domain walls, as they move through the early universe plasma during their collapse, can generate a net baryon and lepton number through the mechanism of spontaneous baryoge…
Gravitational waves from cosmic strings in Froggatt-Nielsen flavour models
Simone Blasi, Lorenzo Calibbi, Alberto Mariotti +1
Gravitational waves (GW) are a powerful probe of the earliest moments in the Universe, enabling us to test fundamental interactions at energy scales beyond the reach of laboratory…
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…
Investigating cosmic histories with a stiff era through Gravitational Waves
Hannah Duval, Sachiko Kuroyanagi, Alberto Mariotti +2
We investigate the potential of gravitational-wave background searches to constrain cosmic histories characterised by a stiff equation of state, preceded by a period of matter domi…
QCD Axion Strings or Seeds?
Simone Blasi, Alberto Mariotti
We study the impact of QCD axion strings in the cosmological history of electroweak (EW) symmetry breaking, focussing on the minimal KSVZ axion model. We consider the case of the p…