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Title: Axions as hot and cold dark matter

Abstract

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}∼

Authors:
 [1];  [2];  [3]
  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)
Publication Date:
OSTI Identifier:
22370674
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 02; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Jeong, Kwang Sik, Kawasaki, Masahiro, and Takahashi, Fuminobu, E-mail: kwangsik.jeong@desy.de, E-mail: kawasaki@icrr.u-tokyo.ac.jp, E-mail: fumi@tuhep.phys.tohoku.ac.jp. Axions as hot and cold dark matter. United States: N. p., 2014. Web. doi:10.1088/1475-7516/2014/02/046.
Jeong, Kwang Sik, Kawasaki, Masahiro, & Takahashi, Fuminobu, E-mail: kwangsik.jeong@desy.de, E-mail: kawasaki@icrr.u-tokyo.ac.jp, E-mail: fumi@tuhep.phys.tohoku.ac.jp. Axions as hot and cold dark matter. United States. doi:10.1088/1475-7516/2014/02/046.
Jeong, Kwang Sik, Kawasaki, Masahiro, and Takahashi, Fuminobu, E-mail: kwangsik.jeong@desy.de, E-mail: kawasaki@icrr.u-tokyo.ac.jp, E-mail: fumi@tuhep.phys.tohoku.ac.jp. 2014. "Axions as hot and cold dark matter". United States. doi:10.1088/1475-7516/2014/02/046.
@article{osti_22370674,
title = {Axions as hot and cold dark matter},
author = {Jeong, Kwang Sik and Kawasaki, Masahiro and Takahashi, Fuminobu, E-mail: kwangsik.jeong@desy.de, E-mail: kawasaki@icrr.u-tokyo.ac.jp, E-mail: fumi@tuhep.phys.tohoku.ac.jp},
abstractNote = {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}∼},
doi = {10.1088/1475-7516/2014/02/046},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 02,
volume = 2014,
place = {United States},
year = 2014,
month = 2
}
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