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Limits on axion–photon coupling or on local axion density: Dependence on models of the Milky Way’s dark halo

Journal Article · · Physics of the Dark Universe
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  1. Univ. of Washington, Seattle, WA (United States)
  2. National Radio Astronomy Observatory, Charlottesville, VA (United States)
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  4. Univ. of California, Berkeley, CA (United States)
  5. Univ. of Florida, Gainesville, FL (United States)
  6. Univ. of Sheffield (United Kingdom)
  7. Univ. of Washington, Seattle, WA (United States); Raytheon BBN Technologies, Cambridge, MA (United States)
The μV-scale axion is a compelling cold dark matter candidate. The Axion Dark Matter eXperiment (ADMX) searches for axions by stimulating the decay of galactic dark matter halo axions into detectable microwave photons by their conversion in a resonant cavity permeated by a strong, static magnetic field. The signal depends on properties of the Milky Way’s dark matter halo; the choice of halo model has significant implications for the sensitivity of direct detection searches, e.g., ADMX. This work explores the sensitivity of the data taken by ADMX from 2008 to 2010 to various dark matter halo models. New models for the phase-space distribution of local axions are considered; the analysis demonstrates that certain assumptions about the dark matter halo improve limits on axion–photon coupling. In addition, new ADMX data covering 860–892 MHz are included in the analysis.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
Heising-Simons Foundation; USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program. Lawrence Livermore National Laboratory (LLNL); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC02-05CH11231; AC03-76SF00098; AC52-07NA27344; SC0011665
OSTI ID:
1870065
Alternate ID(s):
OSTI ID: 22917625
OSTI ID: 1397384
Report Number(s):
LLNL-JRNL-835233; 1054040
Journal Information:
Physics of the Dark Universe, Journal Name: Physics of the Dark Universe Vol. 14; ISSN 2212-6864
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Axion dark matter detection by laser induced fluorescence in rare-earth doped materials journal November 2017
Physics beyond colliders at CERN: beyond the Standard Model working group report journal December 2019
HAYSTAC axion search analysis procedure journal December 2017
First Results from a Microwave Cavity Axion Search at 24     μ eV journal February 2017
Search for Invisible Axion Dark Matter with the Axion Dark Matter Experiment journal April 2018
Piezoelectrically Tuned Multimode Cavity Search for Axion Dark Matter journal December 2018
Inferred Evidence for Dark Matter Kinematic Substructure with SDSS– Gaia journal March 2019
Revealing the Dark Matter Halo with Axion Direct Detection text January 2017

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