Direct limits for scalar field dark matter from a gravitational-wave detector.

ABSTRACT: The nature of dark matter remains unknown to date, although several candidate particles are being considered in a dynamically changing research landscape¹. Scalar field dark matter is a prominent option that is being explored with precision instruments, such as atomic clocks and optical cavities^2-8. Here we describe a direct search for scalar field dark matter using a gravitational-wave detector, which operates beyond the quantum shot-noise limit. We set new upper limits on the coupling constants of scalar field dark matter as a function of its mass, by excluding the presence of signals that would be produced through the direct coupling of this dark matter to the beam splitter of the GEO600 interferometer. These constraints improve on bounds from previous direct searc

SUBMITTER: Vermeulen SM 

PROVIDER: S-EPMC8674151 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature