| Autor: |
W. U. Wuensch, H. J. Halama, Yannis K. Semertzidis, J. T. Rogers, F. A. Nezrick, W. B. Fowler, A. G. Prodell, B. Moskowitz, A. C. Melissinos, S. De Panfilis-Wuensch |
| Rok vydání: |
1989 |
| Předmět: |
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| Zdroj: |
Physical Review D. 40:3153-3167 |
| ISSN: |
0556-2821 |
| DOI: |
10.1103/physrevd.40.3153 |
| Popis: |
A microwave cavity experiment designed to search for the signal from cosmic axions converting in an external magnetic field covered the mass range (4.5-16.3)\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}6}$ eV, corresponding to the frequency range from 1.09 to 3.93 GHz. Upper limits on the coupling and abundance of nonrelativistic galactic axions have been measured; these limits yield a coupling which is 1-2 orders of magnitude higher than that predicted by the Dine-Fischler-Srednicki model. Also presented are limits on axions with a continuum spectrum, limits on the presence of a wide axion line at the frequency of the 21-cm hydrogen emission line, and limits on the production of pseudoscalar particles by photons in the cavity interacting with the magnetic field. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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