Kavli Affiliate: Chao-Lin Kuo
| First 5 Authors: A. T. Hipp, A. Quiskamp, T. J. Caligiure, J. R. Gleason, Y. Han
| Summary:
The Axion Dark Matter eXperiment is sensitive to narrow axion flows, given
axions compose a fraction of the dark matter with a non-negligible local
density. Detecting these low-velocity dispersion flows requires a high spectral
resolution and careful attention to the expected signal modulation due to
Earth’s motion. We report an exclusion on the local axion dark matter density
in narrow flows of $rho_a gtrsim 0.03,mathrm{GeV/cm^3}$ and $rho_a gtrsim
0.004,mathrm{GeV/cm^3}$ for Dine-Fischler-Srednicki-Zhitnitski and
Kim-Shifman-Vainshtein-Zakharov axion-photon couplings, respectively, over the
mass range $3.3-4.2,mutext{eV}$. Measurements were made at selected
resolving powers to allow for a range of possible velocity dispersions.
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