Regular Article - Theoretical Physics
Bounds on very weakly interacting ultra light scalar and pseudoscalar dark matter from quantum gravity
Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, UK
* e-mail: F.Kuipers@sussex.ac.uk
Accepted: 13 August 2020
Published online: 27 August 2020
In this paper we consider very weakly interacting and ultra light scalar and pseudoscalar dark matter candidates. We show that quantum gravity has important implications for such models and that the masses of the singlet scalar and pseudoscalar fields must be heavier than eV. However, if they are gauged, their masses could be much lighter and as light as . The existence of new gauge forces in the dark matter sector can thus be probed by atomic clocks or quantum sensors experiments.
© The Author(s), 2020