In search of axions: The CAST experiment

George K. Fanourakis, S. Andriamonje, Arsov, S. Aune, D. Autiero, F. Avignone, K. Barth, A. Belov, B. Beltran, H. Brauninger, J. M. Carmona, S. Cebrian, E. Chesi, J. I. Collar, R. Creswick, T. Dafni, M. Davenport, T. Decker, L. Di Lella, C. EleftheriadisJ. Englhauser, G. Fanourakis, H. Farach, E. Ferrer, H. Fischer, J. Franz, P. Friedrich, T. Geralis, I. Giomataris, S. Gninenko, N. Goloubev, M. D. Hasinoff, F. H. Heinsius, R. Hill, D. H.H. Hoffmann, I. G. Irastorza, J. Jacoby, D. Kang, K. Koenigsmann, R. Kotthaus, M. Krcmar, K. Kousouris, M. Kuster, B. Lakic, C. Lasseur, A. Liolios, A. Ljubicic, G. Lutz, G. Luzon, D. W. Miller, A. Morales, J. Morales, M. Mutterer, A. Nikolaidis, A. Ortiz, T. Papaevangelou, M. Pivovaroff, A. Placci, G. Raffelt, J. Ruz, H. Riege, M. L. Sarsa, I. Savvidis, W. Serber, P. Serpico, Y. Semertzidis, R. Soufli, L. Stewart, K. Van Bibber, J. D. Vieira, J. Villar, L. Walckiers, K. Zachariadou, K. Zioutas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The CERN Axion Solar Telescope (CAST) experiment uses a decommissioned LHC test magnet in conjunction with three different technology X-ray photon detectors and tracks the sun to look for the elusive axion. Axions or axion-like particles with a two-photon interaction can be produced in the Sun by the Primakoff process, according to the theory. In a laboratory magnetic field they can be transformed into X-rays with energies of a few keV. CAST has been running for about 6 months during 2003 and most of 2004. The first results from the analysis of the 2003 data are presented here. No signal above background was observed, implying an upper limit to the axion to photon coupling g αγγ < 1.16 × 10-10 GeV -1 at 95% CL for mα ≤ 0.02 eV. This limit is comparable to the limit from stellar energy loss arguments and considerably more restrictive than any previous experiment in this axion mass range.

Original languageEnglish (US)
Title of host publicationRECENT ADVANCES IN ASTRONOMY AND ASTROPHYSICS
Subtitle of host publication7th International Conference of the Hellenic Astronomical Society
Pages816-825
Number of pages10
DOIs
StatePublished - 2006
Event7th International Conference of the Hellenic Astronomical Society - Lixourion, Kefallinia Island, Greece
Duration: Sep 8 2005Sep 11 2005

Publication series

NameAIP Conference Proceedings
Volume848
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other7th International Conference of the Hellenic Astronomical Society
Country/TerritoryGreece
CityLixourion, Kefallinia Island
Period9/8/059/11/05

Keywords

  • Axions
  • Dark matter
  • Micromegas
  • X-ray detection

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'In search of axions: The CAST experiment'. Together they form a unique fingerprint.

Cite this