Thursday, November 21, 2024
HP 4351
Cosmological probes of ultralight dark photons
Abstract:
Cosmological observables are particularly sensitive to the existence of
ultralight dark photons. I will describe the physics of conversions
between visible and dark photons, and discuss how to use both the cosmic
microwave background, Lyman-alpha forest, and 21-cm cosmology to look
for such conversions.