863 citations · 5.6k across the 74 of their papers we have counts for
23 papers · 1 filter
Thermal Masses and Bubble-Wall Friction in Cosmological Phase Transitions
Carlo Branchina, Stefania De Curtis, Luigi Delle Rose +3
Bubble-wall friction controls the dynamics of first-order cosmological phase transitions. In Boltzmann-equation approaches, a major uncertainty arises from infrared gauge bosons, w…
Early vs late string networks from a minimal QCD Axion
Marco Gorghetto, Edward Hardy, Horia Nicolaescu +2
We propose a new regime of minimal QCD axion dark matter that lies between the pre- and post-inflationary scenarios, such that the Peccei-Quinn (PQ) symmetry is restored only on su…
Improved hot dark matter bound on the QCD axion
Alessio Notari, Fabrizio Rompineve, Giovanni Villadoro
We strengthen the cosmological bound on the axion mass, by solving the momentum-dependent Boltzmann equations for axion-pion scatterings and by using a phenomenological production…
High Quality QCD Axion at Gravitational Wave Observatories
Ricardo Z. Ferreira, Alessio Notari, Oriol Pujolàs +1
The axion solution to the strong CP problem is delicately sensitive to Peccei-Quinn breaking contributions that are misaligned with respect to QCD instantons. Heavy QCD axion model…
The DFSZ axion in the CMB
Ricardo Z. Ferreira, Alessio Notari, Fabrizio Rompineve
We perform for the first time a dedicated analysis of cosmological constraints on DFSZ QCD axion models. Such constructions are especially interesting in light of the recent Xenon-…
Production of Thermal Axions across the ElectroWeak Phase Transition
Fernando Arias-Aragon, Francesco D'Eramo, Ricardo Z. Ferreira +2
Light axions can potentially leave a cosmic background, just like neutrinos. We complete the study of thermal axion production across the electroweak scale by providing a smooth an…