Probing WIMPs in space-based gravitational wave experiments
Journal
Physics Letters B 833 (2022) 137308
Journal Volume
833
Date Issued
2022-05-17
Author(s)
Abstract
Although searches for dark matter have lasted for decades, no convincing
signal has been found without ambiguity in underground detections, cosmic ray
observations, and collider experiments. We show by example that gravitational
wave (GW) observations can be a supplement to dark matter detections if the
production of dark matter follows a strong first-order cosmological phase
transition. We explore this possibility in a complex singlet extension of the
standard model with CP symmetry. We demonstrate three benchmarks in which the
GW signals from the first-order phase transition are loud enough for future
space-based GW observations, for example, BBO, U-DECIGO, LISA, Taiji, and
TianQin. While satisfying the constraints from the XENON1T experiment and the
Fermi-LAT gamma-ray observations, the dark matter candidate with its mass
around $\sim 1$~TeV in these scenarios has a correct relic abundance obtained
by the Planck observations of the cosmic microwave background radiation.
Subjects
RADIATIVE-CORRECTIONS; PHYSICS; NUMBER; LIMITS; High Energy Physics - Phenomenology; High Energy Physics - Phenomenology
Publisher
ELSEVIER
Description
11 pages, 2 figures, 2 tables
Type
journal article