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Status and perspectives of the CAST experiment

  • B. Lakić
  • , M. Arik
  • , S. Aune
  • , K. Barth
  • , A. Belov
  • , S. Borghi
  • , H. Bräuninger
  • , G. Cantatore
  • , J. M. Carmona
  • , S. A. Cetin
  • , J. I. Collar
  • , T. Dafni
  • , M. Davenport
  • , C. Eleftheriadis
  • , N. Elias
  • , C. Ezer
  • , G. Fanourakis
  • , E. Ferrer-Ribas
  • , P. Friedrich
  • , J. Galán
  • J. A. García, A. Gardikiotis, E. N. Gazis, T. Geralis, I. Giomataris, S. Gninenko, H. Gómez, E. Gruber, T. Guthörl, R. Hartmann, F. Haug, M. D. Hasinoff, D. H.H. Hoffmann, F. J. Iguaz, I. G. Irastorza, J. Jacoby, K. Jakovčić, M. Karuza, K. Königsmann, R. Kotthaus, M. Krčmar, M. Kuster, J. M. Laurent, A. Liolios, A. Ljubičić, V. Lozza, G. Lutz, G. Luzón, J. Morales, T. Niinikoski, A. Nordt, T. Papaevangelou, M. J. Pivovaroff, G. Raffelt, T. Rashba, H. Riege, A. Rodríguez, M. Rosu, J. Ruz, I. Savvidis, P. S. Silva, K. Solanki, L. Stewart, A. Tomás, M. Tsagri, K. Van Bibber, T. Vafeiadis, J. Villar, K. Vogel, S. C. Yildiz, K. Zioutas

Research output: Contribution to journalConference articlepeer-review

Abstract

The CERN Axion Solar Telescope (CAST) is currently the most sensitive axion helioscope designed to search for axions produced by the Primakoff process in the solar core. CAST is using a Large Hadron Collider (LHC) test magnet where axions could be converted into X-rays with energies up to 10 keV. During the phase I, the experiment operated with vacuum inside the magnet bores and covered axion masses up to 0.02 eV. In the phase II, the magnet bores were filled with a buffer gas (first 4He and later 3He) at various densities in order to extend the sensitivity to higher axion masses (up to f .18 eV). The phase II data taking was completed in 2011. So far, no evidence of axion signal has been found and CAST set the most restrictive experimental limit on the axion-photon coupling constant over a broad range of axion masses. The latest CAST results with 3He data in the mass range 0.39 eV < ma < 0.64 eV will be presented.

Original languageEnglish
Article number022001
JournalJournal of Physics: Conference Series
Volume375
Issue numberPART 2
DOIs
Publication statusPublished - 2012
Event12th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2011 - Munich, Germany
Duration: 5 Sept 20119 Sept 2011

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