Ionization of atoms by axion and search for dark matter

ORAL

Abstract

Cross section of the ionization of Ar, Ge and Xe by a weakly interacting pseudoscalar particle such as axion is calculated in the relativistic Hartree-Fock approximation for the particle mass range from 10 to 50 keV where it can be considered as a candidate for dark matter. An analytical formula is presented which fits numerical calculations with about 10\% accuracy and can be used for any atom. The results are to be used in laboratory search for dark matter.

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Authors

  • Vladimir Dzuba

    University of New South Wales

  • Victor Flambaum

    University of New South Wales, University of New South Wales, Sydney, Australia

  • Maxim Pospelov

    University of Victoria