4 papers
Dark Photons from Perturbative Decay of a Misaligned Higgs Field
James M. Cline, Gonzalo Herrera, Jean-Samuel Roux
We reconsider the production of dark photons as dark matter, from the perturbative decay of a dark Higgs field , that is stochastically misaligned from the minimum of its p…
Quintessential dark energy crossing the phantom divide
Ruiqi Chen, James M. Cline, Varun Muralidharan +1
Motivated by recent results from the DESI collaboration, we explore two classes of quintessence models that can give rise to crossing of the dark energy equation of state through t…
Plausible constraints and inflationary production for dark photons
James M. Cline, Gonzalo Herrera
Generic constraints on dark photons are generally presented assuming they have Stueckelberg masses. These constraints are strengthened if instead the mass is due to the Higgs mecha…
Simple quintessence models in light of DESI-BAO observations
James M. Cline, Varun Muralidharan
Recent analyses from the DESI collaboration suggest that the dark energy density of the Universe may be decreasing with time, slowing the acceleration of the scale factor . Typi…