First results from the CAST experiment

T. Dafni, S. Andriamonje, V. Arsov, S. Aune, D. Autiero, K. Barth, A. Belov, B. Beltrán, H. Bräuninger, J. Carmona, S. Cebrián, E. Chesi, J. Collar, M. Davenport, L. Di Lella, C. Eleftheriadis, J. Englhauser, G. Fanourakis, E. Ferrer, H. FischerJ. Franz, P. Friedrich, T. Geralis, I. Giomataris, S. Gninenko, N. Goloubev, M. Hasinoff, F. H. Heinsius, D. H.H. Hoffmann, I. G. Irastorza, J. Jacoby, D. Kang, K. Königsmann, R. Kotthaus, M. Krcmar, K. Kousouris, M. Kuster, B. Lakić, C. Lasseur, A. Liolios, A. Ljubicić, G. Lutz, G. Luzón, D. Miller, A. Morales, J. Morales, A. Ortiz, T. Papaevangelou, A. Placci, G. Raffelt, J. Ruz, H. Riege, M. Sarsa, I. Savvidis, Y. Semertzidis, W. Serber, P. Serpico, L. Stewart, J. Vieira, J. Villar, L. Walckiers, K. Zioutas

Research output: Contribution to journalArticlepeer-review


The CAST Experiment commenced its first phase of solar axion-searching in 2003, and ran successfully for two years. In the transverse field of a decommissioned Large Hadron Collider (LHC) test magnet (9.26m, 9T), the CERN Axion Solar Telescope intends to transform axions -that would be produced in the sun- into X-rays with energies of a few keV. The first results from the analysis of the data taken in 2003 show no signature of axions, implying an upper limit to the axion-photon coupling g 1.16 × 10-10 GeV-1 at 95% C.L. for ma < 0.02 eV, already a factor 100 better than previous searches. In Phase I the twin bores of the magnet were kept in vacuum. In Phase II (due to start in November 2005) the bores of the magnet will be filled with a buffer gas, which will allow CAST to explore the region of higher axion masses.

Original languageEnglish (US)
Article number024
Pages (from-to)117-119
Number of pages3
JournalJournal of Physics: Conference Series
Issue number1
StatePublished - Apr 1 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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