Galactic-halo motivated searches for dark-matter axions with ADMX

ORAL

Abstract

Axions are a compelling cold-dark matter candidate, and the Axion Dark Matter eXperiment (ADMX) is the most sensitive detector for an axion component of the Milky Way's dark-matter halo. It may well be that our Milky Way's dark-matter halo is richer and more complicated than the isothermal-sphere approximation assumed in the majority of direct dark-matter searches. These richer, more complicated halo models, as an a priori within the ADMX analysis, could perhaps increase the experiment sensitivity. In this talk I discuss these more complicated halo models and their effect on the ADMX analysis. Some of these halo models include the ``caustic ring'' and ``dark-disk'' halos.

*Supported by DOE Grants DE-FG02-97ER41029, DE-FG02-96ER40956, DE-AC52-07NA27344, DE-AC03-76SF00098, NSF Grant 1067242, and the Livermore LDRD program.

Authors

  • Michael Hotz

    • U. of Washington