The next phase of the Axion Dark Matter eXperiment

ORAL

Abstract

Axions are a well motivated dark matter candidate which may be detected by their resonant conversion to photons in the presence of a large static magnetic field. The Axion Dark Matter eXperiment recently finished a search for DM axions using a new ultralow noise microwave receiver based on a SQUID amplifier. The success of this precursor experiment has paved the way for a definitive axion search which will see the system noise temperature lowered from 1.8 K to 100 mK, dramatically increasing sensitivity to even pessimistic axion models as well as increasing scan speed. Here we discuss the implementation of this next experimental phase.

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Security, LLC, Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344

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Authors

  • Gianpaolo Carosi

    • LLNL

  • S. Asztalos

    • LLNL

  • C. Hagmann

    • LLNL

  • D. Kinion

    • LLNL

  • K. van Bibber

    • LLNL / NPS

  • M. Hotz

    • University of Washington

  • D. Lyapustin

    • University of Washington

  • L. Rosenberg

    • University of Washington

  • G. Rybka

    • University of Washington

  • A. Wagner

    • University of Washington

  • J. Hoskins

    • University of Florida

  • C. Martin

    • University of Florida

  • P. Sikivie

    • University of Florida

  • N. Sullivan

    • University of Florida

  • D. Tanner

    • University of Florida

  • R. Bradley

    • NRAO

  • J. Clarke

    • University of California, Berkeley