3 papers
astro-ph.CO2026
Beyond thermal approximations: Precise cosmological bounds on Axion-Like Particles
Nicola Barbieri, Luca Caloni, Martina Gerbino +2
We derive updated cosmological bounds on light axion-like particles (ALPs) coupled to leptons or photons, using a full phase-space treatment of their production from the primordial…
astro-ph.CO2025
Accurate and efficient likelihood modeling for large-scale CMB data
Giacomo Galloni, Paolo Campeti, Luca Pagano +3
Accurate parameter estimation from cosmic microwave background data requires reliable likelihood modeling, particularly at large angular scales where angular power spectrum estimat…
hep-ph2025
Strange quark matter as dark matter: 40 years later, a reappraisal
Francesco Di Clemente, Marco Casolino, Alessandro Drago +2
Forty years ago Witten suggested that dark matter could be composed of macroscopic clusters of strange quark matter. This idea was very popular for several years, but it dropped ou…