Primordial dark matter from curvature induced symmetry breaking
arXiv:2005.04061 · doi:10.1088/1475-7516/2020/08/002
Abstract
We demonstrate that adiabatic dark matter can be generated by gravity induced symmetry breaking during inflation. We study a symmetric scalar singlet that couples to other fields only through gravity and for which the symmetry is broken by the spacetime curvature during inflation when the non-minimal coupling is negative. We find that the symmetry breaking leads to the formation of adiabatic dark matter with the observed abundance for the singlet mass and .
arXiv comment13 pages, 5 figures. v2; minor edits, published in JCAP
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