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Title: Axion dark matter searches

We report nearly all astrophysical and cosmological data point convincingly to a large component of cold dark matter in the Universe. The axion particle, first theorized as a solution to the strong charge-parity problem of quantum chromodynamics, has been established as a prominent CDM candidate. Cosmic observation and particle physics experiments have bracketed the unknown mass of the axion between approximately a μeV and a meV. The Axion Dark Matter eXperiement (ADMX) has successfully completed searches between 1.9 and 3.7 μeV down to the KSVZ photon-coupling limit. ADMX and the Axion Dark Matter eXperiement High-Frequency (ADMX-HF) will search for axions at weaker coupling and/or higher frequencies within the next few years. Status of the experiments, current research and development, and projected mass-coupling exclusion limits are presented.
Authors:
 [1]
  1. Univ. of Florida, Gainesville, FL (United States). Dept of Physics, et al.
Publication Date:
OSTI Identifier:
1273235
Grant/Contract Number:
SC0010280; FG02-97ER41029; FG02-96ER40956; AC52-07NA27344; AC03-76SF00098; 1067242
Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1604; Journal Issue: 1; Conference: VII International Conference on Interconnections between Particle Physics and Cosmology, Deadwood, SD (United States), 24 Jun - 26 Jul 2013; Journal ID: ISSN 0094-243X
Publisher:
AIP
Research Org:
Univ. of Florida, Gainesville, FL (United States)
Sponsoring Org:
USDOE; National Science Foundation (NSF)
Contributing Orgs:
ADMX Collboration and ADMX-HF Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS axion; dark matter; direct detection