Axions as hot and cold dark matter

Journal Article · Sat Feb 01 00:00:00 EST 2014 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2014/02/046· OSTI ID:22370674

Jeong, Kwang Sik ^[1]; Kawasaki, Masahiro ^[2]; Takahashi, Fuminobu ^[3]

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1. Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, 22607 Hamburg (Germany)
2. Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582 (Japan)
3. Department of Physics, Tohoku University, Sendai 980-8578 (Japan)

The presence of a hot dark matter component has been hinted at 3σ by a combination of the results from different cosmological observations. We examine a possibility that pseudo Nambu-Goldstone bosons account for both hot and cold dark matter components. We show that the QCD axions can do the job for the axion decay constant f{sub a}∼

• OSTI ID: 22370674
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 02; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANNIHILATION
AXIONS
GEV RANGE
HIGGS BOSONS
HIGGS MODEL
NONLUMINOUS MATTER
PARTICLE DECAY
QUANTUM CHROMODYNAMICS
STANDARD MODEL