Dark matter from gravitational particle production at reheating

We show that curvature induced particle production at reheating generates adiabatic dark matter if there are non-minimally coupled spectator scalars weakly coupled to visible matter. The observed dark matter abundance implies an upper bound on spectator masses m and non-minimal coupling values ξ. Fo...

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Veröffentlicht in:	Journal of cosmology and astroparticle physics 2017-02, Vol.2017 (2)
Hauptverfasser:	Markkanen, Tommi, Nurmi, Sami
Format:	Artikel
Sprache:	eng
Schlagworte:	ABUNDANCE ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COUPLING GEV RANGE INFLATIONARY UNIVERSE MASS NONLUMINOUS MATTER PARTICLE PRODUCTION
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