Viable vector coherent oscillation dark matter
Naoya Kitajima, Kazunori Nakayama
Abstract
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 eV to 1 eV.
Topics & Concepts
PhysicsInflatonOscillation (cell signaling)Dark matterParticle physicsPerturbation (astronomy)Kinetic termCurvatureCosmological perturbation theoryHubble's lawAnisotropyCosmologyDark energyQuantum electrodynamicsAstrophysicsInflation (cosmology)Classical mechanicsTheoretical physicsQuantum mechanicsScalar fieldMathematicsGeometryBiologyGeneticsCosmology and Gravitation TheoriesDark Matter and Cosmic PhenomenaGalaxies: Formation, Evolution, Phenomena