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Experimental Constraints on the Axion Dark Matter Halo Density

Stephen J. Asztalos·E. Daw·H. Peng·L. J Rosenberg·C. Hagmann·D. Kinion·W. Stoeffl·K. van Bibber·J. LaVeigne·P. Sikivie·N. S. Sullivan·D. B. Tanner·F. Nezrick·Michael S. Turner·D. M. Moltz
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Abstract

Most of the mass of the Milky Way galaxy is contributed by its halo, presumably in the form of non-interacting cold dark matter. The axion is a compelling cold dark matter candidate. We report results from a search which probes the local galactic halo axion density using the Sikivie RF cavity technique. Candidates over the frequency range 550$$ $\le$ f $\le$$$ 810 MHz (2.3$$ $μ$eV $\le$$$ m$_{a}$ $\le$ 3.4 $μ$eV) were investigated. The absence of a signal suggests that KSVZ axions contribute no more than 0.45 GeV/cm$^3$ of mass density to the local dark matter halo over this mass range.

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Stephen J. Asztalos, E. Daw, H. Peng, L. J Rosenberg, C. Hagmann, D. Kinion, W. Stoeffl, K. van Bibber, J. LaVeigne, P. Sikivie, N. S. Sullivan, D. B. Tanner, F. Nezrick, Michael S. Turner, D. M. Moltz. 2002-06-12. Experimental Constraints on the Axion Dark Matter Halo Density. https://doi.org/10.1086/341130

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