Strongly self-interacting vector dark matter via freeze-in

Abstract

We study a vector dark matter (VDM) model in which the dark sector couples to the Standard Model sector via a Higgs portal. If the portal coupling is small enough the VDM can be produced via the freeze-in mechanism. It turns out that the electroweak phase transition have a substantial impact on the prediction of the VDM relic density. We further assume that the dark Higgs boson which gives the VDM mass is so light that it can induce strong VDM self-interactions and solve the small-scale structure problems of the Universe. As illustrated by the latest LUX data, the extreme smallness of the Higgs portal coupling required by the freeze-in mechanism implies that the dark matter direct detection bounds are easily satisfied. However, the model is well constrained by the indirect detections of VDM from BBN, CMB, AMS-02, and diffuse $\gamma$/X-rays. Consequently, only when the dark Higgs boson mass is at most of $\mathcal{O}(\mathrm{keV})$ does there exist a parameter region which leads to a right amount of VDM relic abundance and an appropriate VDM self-scattering while satisfying all other constraints simultaneously.

29 pages, 8 figures

References in corpus (18)

• A Theory of Dark Matter
• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Secluded WIMP Dark Matter
• Constraints on the Self-Interaction Cross-Section of Dark Matter from Numerical Simulations of the Merging Galaxy Cluster 1E 0657-5
• The Dawn of FIMP Dark Matter: A Review of Models and Constraints
• The non-gravitational interactions of dark matter in colliding galaxy clusters
• Dark Matter and Dark Radiation
• Cores in Dwarf Galaxies from Dark Matter with a Yukawa Potential
• Is dark matter with long-range interactions a solution to all small-scale problems of ΛCDM cosmology?
• General Constraints on Dark Matter Decay from the Cosmic Microwave Background
• Too Big to Fail in the Local Group
• Resonant Dark Forces and Small Scale Structure
• Dark Matter Evidence, Particle Physics Candidates and Detection Methods
• Dark Matter from a Classically Scale-Invariant $SU(3{)}_X$
• VDM: A model for Vector Dark Matter
• Invisible Higgs Decay Width vs. Dark Matter Direct Detection Cross Section in Higgs Portal Dark Matter Models
• Multicomponent Dark Matter from Gauge Symmetry
• A balance for Dark Matter bound states

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