97 citations · 126 across the 5 of their papers we have counts for
6 papers · 1 filter
Metastable strings at PTAs: classical stability analysis
Simone Blasi, Maxime Grandjean, Alberto Mariotti
Metastable strings can arise from a two-step symmetry breaking chain of the type .They can decay through quantum tunneling by nucleating a monopole-antimonopo…
Monodromic transparency of axion domain walls
Simone Blasi
We revisit the study of light interacting with QCD axion domain walls from the perspective of the non-linear axion coupling to photons, , which encodes the effects…
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…
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…
Electroweak Phase Transition with a Double Well Done Doubly Well
Prateek Agrawal, Simone Blasi, Alberto Mariotti +1
We revisit the electroweak phase transition in the scalar singlet extension of the standard model with a symmetry. In significant parts of the parameter space the ph…
Top-philic ALP phenomenology at the LHC: the elusive mass-window
Simone Blasi, Fabio Maltoni, Alberto Mariotti +3
We study the LHC phenomenology of an Axion Like Particle (ALP) that couples only derivatively with the top quark at tree level. We inspect the radiatively induced couplings with th…