3 papers
hep-ph2026
Probing the neutrino chemical potential with cosmological observations
Pietro Ghedini, Riccardo Impavido, Stefano Gariazzo +2
The electron neutrino degeneracy parameter, , is tightly constrained by Big Bang Nucleosynthesis (BBN), while the degeneracy parameters…
astro-ph.CO2026
Inflationary Fossils Beyond Perturbation Theory
Riccardo Impavido, Nicola Bartolo
In this work we provide the missing link between two approaches aimed at characterizing the effect of long perturbation modes in Inflation. We consider the Inflationary Fossils' ap…
astro-ph.CO2024
Echoes from a long time ago: Chewbacca inflation
D. Sidious, S. Arcari, N. Barbieri +9
The cosmic microwave background (CMB) radiation offers a unique avenue for exploring the early Universe's dynamics and evolution. In this paper, we delve into the fascinating realm…