Speaker
Andreas Ringwald
(DESY)
Description
The axion is arguably one of the best motivated candidates
for dark matter. For a decay constant above about 10^9 GeV,
axions are dominantly produced non-thermally in the early
universe and hence are “cold”, their velocity dispersion
being small enough to fit to large scale structure.
Moreover, such a large decay constant ensures the stability
of axion dark matter at cosmological time scales and its
behaviour as a collisionless fluid at cosmological length
scales.
In this introductory review, we present the state of the art
of axion dark matter predictions.
Primary author
Andreas Ringwald
(DESY)
