Journal Article/Internal Report

DESY-2014-02299

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Axions as hot and cold dark matter

Jeong, K. S. (Corresponding Author)DESY* ; Kawasaki, M. ; Takahashi, F.

2014
IOP London

This record in other databases:      

Please use a persistent id in citations: doi:10.1088/1475-7516/2014/02/046

Report No.: DESY-13-181; ICRR-661-2013-10; IPMU13-0197; TU-948; arXiv:1310.1774

Abstract: The presence of a hot dark matter component has been hintedat 3σ by a combination of the results from differentcosmological observations. We examine a possibility that pseudoNambu-Goldstone bosons account for both hot and cold dark mattercomponents. We show that the QCD axions can do the job for theaxion decay constant fa(1010) GeV, if theyare produced by the saxion decay and the domain wall annihilation.We also investigate the cases of thermal QCD axions, pseudoNambu-Goldstone bosons coupled to the standard model sector throughthe Higgs portal, and axions produced by modulus decay.

Keyword(s): dark matter theory (LCSH) ; axions (LCSH) ; physics of the early universe (LCSH)

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 514 - Theoretical Particle Physics (POF2-514) (POF2-514)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2014

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Database coverage:
; ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint/Internal Report Jeong, K.DESY* ; Kawasaki, M. ; Takahashi, F.
Axions as Hot and Cold Dark Matter
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