Alternative dark matter candidates: Axions - INSPIRE

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Alternative dark matter candidates: Axions

Andreas Ringwald
(
- DESY
)

Dec 28, 2016

6 pages

Part of Proceedings, Neutrino Oscillation Workshop (NOW 2016) : Otranto (Lecce), Italy, September 4-11, 2016, 081

Published in:

PoS NOW2016 (2016) 081

Contribution to:

- NOW 2016
, 081

Published: Dec 28, 2016 by SISSA

e-Print:

1612.08933 [hep-ph]

DOI:

10.22323/1.283.0081

Report number:

DESY-16-236

View in:

ADS Abstract Service

reference search41 citations

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Abstract: (arXiv)

The axion is arguably one of the best motivated candidates for dark matter. For a decay constant greater than 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 at cosmological time scales and its behaviour as a collisionless fluid at cosmological length scales. Here, we review the state of the art of axion dark matter predictions and of experimental efforts to search for axion dark matter in laboratory experiments.

Note:

6 pages, 2 figures, contribution to the proceedings of the Neutrino Oscillation Workshop 2016, 4 - 11 September, 2016, Otranto, Lecce, Italy

axion: dark matter
velocity: dispersion
decay constant
stability
energy: high
Peccei-Quinn
Theta parameter
U(1)

References(38)

Figures(2)

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