| Literature DB >> 20366699 |
S J Asztalos1, G Carosi, C Hagmann, D Kinion, K van Bibber, M Hotz, L J Rosenberg, G Rybka, J Hoskins, J Hwang, P Sikivie, D B Tanner, R Bradley, J Clarke.
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.Year: 2010 PMID: 20366699 DOI: 10.1103/PhysRevLett.104.041301
Source DB: PubMed Journal: Phys Rev Lett ISSN: 0031-9007 Impact factor: 9.161