Tommi Tenkanen: Spectator Dark Matter | Webinar 77
Channel: lawphysics
Date: 10/04/2019

Speaker:
Tommi Tenkanen
Johns Hopkins University

Abstract:
I show that the observed dark matter abundance in the Universe can be fully accounted for by a minimally coupled spectator scalar field that was light during cosmic inflation and has sufficiently strong self-coupling. In this scenario, dark matter was produced during inflation by amplification of quantum fluctuations of the spectator field. The self-interaction of the field suppresses its fluctuations on large scales, and therefore avoids cosmological isocurvature constraints. The scenario allows for a broad dark matter mass range from 1 GeV to 10⁸ GeV. I will also discuss prospects for detection.

More details in
https://lawphysics.wordpress.com/2019/04/08/w77-tommi-tenkanen-spectator-dark-matter/
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