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First results from the CERN axion solar telescope

Authors :
Theodoros Geralis
M. Davenport
D. Kang
A. Nikolaidis
N. Goloubev
Gerhard Lutz
K. Königsmann
K. Kousouris
Peter Friedrich
Konstantin Zioutas
Biljana Lakić
L. Di Lella
G. Luzón
F.H. Heinsius
J. Morales
M. D. Hasinoff
Jakob Englhauser
C. Eleftheriadis
Georg G. Raffelt
E. Chesi
J. I. Collar
T. Papaevangelou
J. Jacoby
S. Andriamonje
A. Ortiz
H. A. Farach
T. Dafni
D. Autiero
Markus Kuster
J. Ruz
S. Cebrián
Yannis K. Semertzidis
R. J. Creswick
K. Barth
A. Morales
F. T. Avignone
H. Bräuninger
H. Riege
B. Beltrán
Pasquale D. Serpico
David Miller
A. Placci
J. M. Carmona
A. Belov
L. Stewart
R. Kotthaus
J. Franz
G. Fanourakis
I. Savvidis
L. Walckiers
H. Fischer
C. Lasseur
Efrain J. Ferrer
Milica Krčmar
J.A. Villar
Ante Ljubičić
A. Liolios
Joaquin Vieira
I. G. Irastorza
Ioannis Giomataris
M. Mutterer
M.L. Sarsa
W. Serber
S. Aune
Dieter H. H. Hoffmann
K. Zachariadou
V. Arsov
S. Gninenko
Source :
Physical review letters. 94(12)
Publication Year :
2004

Abstract

Hypothetical axion-like particles with a two-photon interaction would be produced in the Sun by the Primakoff process. In a laboratory magnetic field (``axion helioscope'') they would be transformed into X-rays with energies of a few keV. Using a decommissioned LHC test magnet, CAST has been running for about 6 months during 2003. The first results from the analysis of these data are presented here. No signal above background was observed, implying an upper limit to the axion-photon coupling < 1.16 10^{-10} GeV^-1 at 95% CL for m_a<br />Comment: 4 pages, accepted by PRL. Final version after the referees comments

Details

ISSN :
00319007
Volume :
94
Issue :
12
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.doi.dedup.....a272e3cc519ea8b0beaab0238e098877