Light and Feebly Interacting Non-Abelian Vector Dark Matter Produced Through Vector Misalignment

Abstract

In this paper, we examine the evolution of light and feebly interacting non-abelian dark gauge bosons dark matter in the early universe. We specifically work on a multi-component dark matter scenario with a $SU(2{)}_{{}_R}$ gauge symmetry, spontaneously broken by a scalar $\varphi$. For sufficiently light $\lesssim O(\mathrm{MeV})$ and feebly interacting $(g_{{}_R}\lesssim 10^{-10})$ gauge bosons, $W_{{}_R}^3$ and $W_{{}_R}^{\pm }\equiv W_{{}_R}^1\pm i{W}_{{}_R}^2$ become the dark matter candidates. In this study, the portal between the dark sector and the standard model sector is provided by the right-handed electron charged under $SU(2{)}_{{}_R}$. We show that in the region of the parameter space where $g_{{}_R}\sim 10^{-12}$, the dark gauge boson $W_{{}_R}^3$ can be produced efficiently via the freeze-in mechanism, however, this mechanism fails to produce $W_{{}_R}^{\pm }$ sufficiently. For smaller dark gauge coupling, the relic density of three dark matter components can be obtained via the vector misalignment mechanism. Vector misalignment has already been discussed in the case of dark photon dark matter. In this study, we extend the arguments to non-abelian gauge bosons. After discussing the evolution of $W_{{}_R}$s in the early universe, we study the model's constraints and show the parameter space's allowed region.

17 pages, 5 figures

References in corpus (15)

• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• Measurement of the fine-structure constant as a test of the Standard Model
• The non-gravitational interactions of dark matter in colliding galaxy clusters
• Bosonic super-WIMPs as keV-scale dark matter
• Search for New Physics in Electronic Recoil Data from XENONnT
• Cosmological constraints on exotic injection of electromagnetic energy
• Instability of anisotropic cosmological solutions supported by vector fields
• Making dark matter out of light: freeze-in from plasma effects
• Cosmological Constraints on Very Dark Photons
• Enhancement of the Dark Matter Abundance Before Reheating: Applications to Gravitino Dark Matter
• Circumscribing Late Dark Matter Decays Model Independently
• Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function
• Multi-Component Dark Matter in a Non-Abelian Dark Sector
• Search for long-lived particles decaying to leptons with large impact parameter in proton-proton collisions at $\sqrt{s}$ = 13 TeV

Cited by in corpus (2)

• Misalignment production of vector boson dark matter from axion-SU(2) inflation
• Exploring the viability of pseudo Nambu-Goldstone boson as ultralight dark matter in a mass range relevant for strong gravity applications