3 papers
astro-ph.CO2026
Probing inflationary particle production with the CMB power spectrum
Hidde T. Jense, Luca H. Abu El-Haj, J. Colin Hill +1
Particle production is common to many microphysical models of inflation and can imprint observable features in the cosmic microwave background (CMB) anisotropies. We consider a sce…
hep-ph2026
Continuum contribution to charged-current absorption of low-energy on Ar
Steven Gardiner, Pablo Barham Alzás, Alexis Nikolakopoulos +3
Accurate modeling of the absorption of tens-of-MeV on Ar is needed to enable measurements of astrophysical neutrinos using large liquid argon time projection chamber…
astro-ph.CO2026
Constraining Inflationary Particle Production with CMB Polarization
Luca H. Abu El-Haj, Oliver H. E. Philcox, J. Colin Hill
Following Philcox et al. (2025), we investigate a scenario with a massive partner to the inflaton ( times the inflationary Hubble scale), in which particles are produced du…