SQUID-Based Microwave Cavity Search for Dark-Matter Axions

Journal Article · Fri Jan 29 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.041301· OSTI ID:21386763

Asztalos, S J; Carosi, G; Hagmann, C; Kinion, D; Bibber, K van; Hotz, M; Rosenberg, L J; Rybka, G; Hoskins, J; Hwang, J; Sikivie, P; Tanner, D B; Bradley, R; Clarke, J ^[1]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

Axions in the mueV 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 mueV and 3.53 mueV and sets the stage for a definitive axion search utilizing near quantum-limited SQUID amplifiers.

• OSTI ID: 21386763
• Journal Information: Physical Review Letters, Vol. 104, Issue 4; Other Information: DOI: 10.1103/PhysRevLett.104.041301; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
AMPLIFIERS
AXIONS
EV RANGE
FIELD EFFECT TRANSISTORS
GALLIUM ARSENIDES
MAGNETIC FIELDS
MICROWAVE RADIATION
NONLUMINOUS MATTER
PHOTONS
SQUID DEVICES
ARSENIC COMPOUNDS
ARSENIDES
BOSONS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTARY PARTICLES
ENERGY RANGE
EQUIPMENT
FLUXMETERS
GALLIUM COMPOUNDS
GOLDSTONE BOSONS
MASSLESS PARTICLES
MATTER
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
PNICTIDES
POSTULATED PARTICLES
RADIATIONS
SEMICONDUCTOR DEVICES
SUPERCONDUCTING DEVICES
TRANSISTORS