Constraint on Vector Coherent Oscillation Dark Matter with Kinetic Function
| Autor: | Kazunori Nakayama |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Cosmology and Nongalactic Astrophysics (astro-ph.CO) 010308 nuclear & particles physics Dark matter Perturbation (astronomy) FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Inflaton Curvature 01 natural sciences Vector boson High Energy Physics - Phenomenology General Relativity and Quantum Cosmology High Energy Physics - Phenomenology (hep-ph) Quantum electrodynamics 0103 physical sciences Energy density Kinetic function Astrophysics - Cosmology and Nongalactic Astrophysics |
| DOI: | 10.48550/arxiv.2004.10036 |
| Popis: | A spatially uniform vector condensate can be formed during inflation if the vector boson is coupled to the inflaton through nontrivial kinetic function. The coherent oscillation of such a massive vector boson is a dark matter candidate. In this paper we consider the case where the vector boson energy density increases during inflation and show that the curvature/isocurvature perturbation gives stringent constraint on this scenario. Comment: 26 pages, 3 figures; improved discussion |
| Databáze: | OpenAIRE |
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