Phase Transitions and Gravitational Waves in a Model of ${\mathbb{Z}}_3$ Scalar Dark Matter

Abstract

Theories with more than one scalar field often exhibit phase transitions producing potentially detectable gravitational wave (GW) signal. In this work we study the semi-annihilating ${\mathbb{Z}}_3$ dark matter model, whose dark sector comprises an inert doublet and a complex singlet, and assess its prospects in future GW detectors. Without imposing limits from requirement of providing a viable dark matter candidate, i.e. taking into account only other experimental and theoretical constraints, we find that the first order phase transition in this model can be strong enough to lead to a detectable signal. However, direct detection and the dark matter thermal relic density constraint calculated with the state-of-the-art method including the impact of early kinetic decoupling, very strongly limit the parameter space of the model explaining all of dark matter and providing observable GW peak amplitude. Extending the analysis to underabundant dark matter thus reveals region with detectable GWs from a single-step or multi-step phase transition.

37 pages, 5 figures, references added, version accepted in JHEP

References in corpus (36)

• Gauge Singlet Scalars as Cold Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• Gravitational Wave Production by Collisions: More Bubbles
• Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
• The oblique parameters in multi-Higgs-doublet models
• Gravitational wave energy budget in strongly supercooled phase transitions
• A precision constraint on multi-Higgs-doublet models
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Dynamics of Non-renormalizable Electroweak Symmetry Breaking
• Inert Doublet Model and LEP II Limits
• Cosmological phase transitions: from perturbative particle physics to gravitational waves
• Natural Dark Matter from an Unnatural Higgs Boson and New Colored Particles at the TeV Scale
• Evolution of Universe to the present inert phase
• Gravitational waves from bubble collisions and fluid motion in strongly supercooled phase transitions
• Galactic center $\gamma$-ray excess in hidden sector DM models with dark gauge symmetries: local $Z_3$ symmetry as an example
• Minimal semi-annihilating ${\mathbb{Z}}_N$ scalar dark matter
• Mitigating Direct Detection Bounds in Non-minimal Higgs Portal Scalar Dark Matter Models
• Impact of Semi-annihilation of Z3 Symmetric Dark Matter with Radiative Neutrino Masses
• DRAKE: Dark matter Relic Abundance beyond Kinetic Equilibrium
• How arbitrary are perturbative calculations of the electroweak phase transition?
• The trap in the early Universe: impact on the interplay between gravitational waves and LHC physics in the 2HDM
• The Benefits of Diligence: How Precise are Predicted Gravitational Wave Spectra in Models with Phase Transitions?
• Resonance enhancement of dark matter interactions: the case for early kinetic decoupling and velocity dependent resonance width
• The Semi-Hooperon: Gamma-ray and anti-proton excesses in the Galactic Center
• Two dark matter candidates: the case of inert doublet and singlet scalars
• Co-scattering in micrOMEGAs: a case study for the singlet-triplet dark matter model
• Improved bounds on ${\mathbb{Z}}_3$ singlet dark matter
• Multi-step phase transitions and gravitational waves in the inert doublet model
• Phenomenological signatures of mixed complex scalar WIMP dark matter
• The $Z_7$ model of three-component scalar dark matter
• Multi-component Dark Sectors: Symmetries, Asymmetries and Conversions
• WIMP and FIMP dark matter in the inert doublet plus singlet model
• A review of neutrino decoupling from the early universe to the current universe
• Search for Semi-Annihilating Dark Matter with Fermi-LAT, H.E.S.S., Planck, and the Cherenkov Telescope Array
• The centers of discrete groups as stabilizers of Dark Matter
• Non-minimal Coupling Inflation and Dark Matter under the ${\mathbb{Z}}_3$ Symmetry

Cited by in corpus (3)

• Prospecting bipartite Dark Matter through Gravitational Waves
• Gravitational wave signatures of first-order phase transition in two-component dark matter model
• Asymmetric dark matter from semi-annihilation: unitarity constraints and long-lived final states