Search for nonvirialized axionic dark matter

Hoskins J.; Hwang J.; Martin C.Sikivie P.Sullivan N.S.Tanner D.B.Hotz M.Rosenberg L.J.Rybka G.Wagner A.Asztalos S.J.Carosi G.Hagmann C.Kinion D.Van Bibber K.Bradley R.Clarke J.

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Search for nonvirialized axionic dark matter

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Cold dark matter in the Milky Way halo may have structure defined by flows with low velocity dispersion. The Axion Dark Matter eXperiment high resolution channel is especially sensitive to axions in such low velocity dispersion flows. Results from a combined power spectra analysis of the high resolution channel axion search are presented along with a discussion of the assumptions underlying such an analysis. We exclude Kim-Shifman-Vainshtein-Zakharov axion dark matter densities of ρ 0.2GeV/cm3 and Dine-Fischler-Srednicki-Zhitnitskii densities of ρ 1.4GeV/cm3 over a mass range of m _a=3.3μeV to 3.69μeV for models having velocity dispersions of Δβ3×10 -6.

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《Physical review, D. Particles, fields, gravitation, and cosmology》 |2011年第1期|121302-1-121302-5|共5页
作者
Hoskins J.; Hwang J.; Martin C.Sikivie P.Sullivan N.S.Tanner D.B.Hotz M.Rosenberg L.J.Rybka G.Wagner A.Asztalos S.J.Carosi G.Hagmann C.Kinion D.Van Bibber K.Bradley R.Clarke J.;
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Lawrence Livermore National Laboratory, Livermore, CA 94550, United States;

University of Florida, Gainesville, FL 32611, United States;

University of Washington, Seattle, WA 98195, United StatesNational Radio Astronomy Observatory, Charlottesville, VA 22903, United StatesUniversity of California, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States;

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正文语种英语
中图分类粒子物理学;
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Search for nonvirialized axionic dark matter

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