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Viable Vector Coherent Oscillation Dark Matter
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Viable Vector Coherent Oscillation Dark Matter
abstract
We construct a viable model of the vector coherent oscillation dark matter. The vector boson is coupled to the inflaton through the kinetic function so that the effective Hubble mass term is cancelled out. In order to avoid strong constraints from isocurvature perturbation and statistically anisotropic curvature perturbation, the inflaton is arranged so that it does not contribute to the observed large scale curvature perturbation and we introduce a curvaton. We found viable vector coherent oscillation dark matter scenario for the wide vector mass range from $10^{-21}\,{\rm eV}$ to $1\,{\rm eV}$.
Forward citations
Cited by 7 Pith papers
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CMB Test of the Higgs Origin of Dark-Photon Dark Matter
CMB isocurvature distinguishes Higgsed dark-photon DM production histories via a model-independent response formalism, requiring q_eff >=2 and initial displacements >3.5e4 H_* for perturbative full-abundance cases.
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Detecting dark matter using optically trapped Rydberg atom tweezer arrays
Rydberg atom tweezer arrays can detect dark-photon dark matter with sensitivity to unexplored parameter space by scanning via Zeeman and diamagnetic shifts under external magnetic fields.
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Spin-1 Ultralight Dark Matter under Cosmological Scrutiny: Mass Constraints from CMB and Distance Probes
Cosmological data place a lower bound near 10⁻²⁴ eV on spin-1 ultralight dark matter and predict a CMB anisotropy signature that may be detectable when the vector field is a minor dark-matter component.
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Dark Photon Dark Matter from Quantum Fluctuations during Starobinsky Inflation
Dark photons produced by quantum fluctuations during Starobinsky inflation must have a mass of 5.6–7.4 µeV to be all the dark matter.
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Absorption cross section of a Schwarzschild black hole for a massive vector field
Numerical computation of absorption cross sections for massive Proca fields on Schwarzschild black holes, revealing mass-induced longitudinal modes and breaking of even-odd parity degeneracy in transmission spectra.
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Misalignment production of isotropized vector dark matter?
Kinetic-coupling misalignment of an isotropized multi-vector condensate cannot produce dark matter: non-Gaussianity and isocurvature constraints exclude the viable parameter space in both weak- and strong-mixing regimes.
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Misalignment production of isotropized vector dark matter?
Isotropized multi-vector misalignment dark matter from kinetic coupling is excluded because non-Gaussianity and isocurvature bounds require incompatible mixing strengths.
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