SQUID-Based Microwave Cavity Search for Dark-Matter Axions

2010705 citationsJournal Articlegreen Open Access

Authors

S. J. Asztalos · Lawrence Livermore National Laboratory

G. Carosi · Lawrence Livermore National Laboratory

C. Hagmann · Lawrence Livermore National Laboratory

D. Kinion · Lawrence Livermore National Laboratory

K. van Bibber · Lawrence Livermore National Laboratory

M. Hotz · University of Washington

L. J. Rosenberg

Abstract

Axions in the microeV mass range are a plausible cold dark-matter candidate and may be detected by their conversion into microwave photons in a resonant cavity immersed in a static magnetic field. We report the first result from such an axion search using a superconducting first-stage amplifier (SQUID) replacing a conventional GaAs field-effect transistor amplifier. This experiment excludes KSVZ dark-matter axions with masses between 3.3 microeV and 3.53 microeV and sets the stage for a definitive axion search utilizing near quantum-limited SQUID amplifiers.

Topics & Keywords

Dark Matter and Cosmic Phenomena Particle physics theoretical and experimental studies Cosmology and Gravitation Theories

Publication Details

Published in: Physical Review Letters

Volume 104, Issue 4, pp. 041301-041301

DOI: 10.1103/physrevlett.104.041301

Field-Weighted Citation Impact: 47.72

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SQUID-Based Microwave Cavity Search for Dark-Matter Axions

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Abstract

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Publication Details