97 citations · 187 across the 7 of their papers we have counts for
3 papers · 1 filter
ALP couplings to muons and electrons: a comprehensive analysis of supernova bounds
Ricardo Z. Ferreira, M. C. David Marsh, Eike Ravensburg
We provide a comprehensive analysis of the phenomenology of axion-like particles (ALPs) produced in core-collapse supernovae (ccSNe) through interactions with electrons and muons,…
Axionic defects in the CMB: birefringence and gravitational waves
Ricardo Z. Ferreira, Silvia Gasparotto, Takashi Hiramatsu +2
The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have recen…
Strong supernovae bounds on ALPs from quantum loops
Ricardo Z. Ferreira, M. C. David Marsh, Eike Müller
We show that in theories of axionlike particles (ALPs) coupled to electrons at tree-level, the one-loop effective coupling to photons is process dependent: the effective coupling r…