3 papers
hep-ph2026
Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments
Michele Cicoli, Francesco D'Eramo, Luca Di Luzio +18
The meV mass range has emerged as a focal point in axion physics, where advances in theory, cosmology, astrophysics, and experimental techniques converge. Axions in this mass range…
astro-ph.CO2026
Cosmological Dynamics of Multi-Axion Quintessence
Supakorn Katewongveerachart, David J. E. Marsh
One fundamental physics interpretation of Dark Energy Spectroscopic Instrument (DESI) results is that the observed accelerated expansion of the Universe is driven not by the cosmol…
hep-ph2024
New insights into axion freeze-in
Mudit Jain, Angelo Maggi, Wen-Yuan Ai +1
Freeze-in via the axion-photon coupling, , can produce axions in the early Universe. At low reheating temperatures close to the minimum allowed value $T_{\rm reh}\approx T_…