Completely dark photons from gravitational particle production during the inflationary era

Kolb, Edward W.; Long, Andrew J.

Completely dark photons from gravitational particle production during the inflationary era

Files

CompletelyDarkPhotonsFromGravi.pdf (4.63 MB)

Date

2021

Authors

Kolb, Edward W.

Long, Andrew J.

Publisher

Springer Nature

Abstract

Starting with the de Broglie-Proca Lagrangian for a massive vector field, we calculate the number density of particles resulting from gravitational particle production (GPP) during inflation, with detailed consideration to the evolution of the number density through the reheating. We find plausible scenarios for the production of dark-photon dark matter of mass in a wide range, as low as a micro-electron volt to 1014 GeV. Gravitational particle production does not depend on any coupling of the dark photon to standard-model particles.

Type

Journal article

Citation

Kolb, Edward W. and Long, Andrew J.. "Completely dark photons from gravitational particle production during the inflationary era." Journal of High Energy Physics, 2021, (2021) Springer Nature: https://doi.org/10.1007/JHEP03(2021)283.

Published Version

https://doi.org/10.1007/JHEP03(2021)283

Rights

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.