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New CAST limit on the axion-photon interaction

  • V. Anastassopoulos
  • , S. Aune
  • , K. Barth
  • , A. Belov
  • , H. Bräuninger
  • , G. Cantatore
  • , J. M. Carmona
  • , J. F. Castel
  • , S. A. Cetin
  • , F. Christensen
  • , J. I. Collar
  • , T. Dafni
  • , M. Davenport
  • , T. A. Decker
  • , A. Dermenev
  • , K. Desch
  • , C. Eleftheriadis
  • , G. Fanourakis
  • , E. Ferrer-Ribas
  • , H. Fischer
  • J. A. García, A. Gardikiotis, J. G. Garza, E. N. Gazis, T. Geralis, I. Giomataris, S. Gninenko, C. J. Hailey, M. D. Hasinoff, D. H.H. Hoffmann, F. J. Iguaz, I. G. Irastorza, A. Jakobsen, J. Jacoby, K. Jakovcic, J. Kaminski, M. Karuza, N. Kralj, M. Krcmar, S. Kostoglou, Ch Krieger, B. Lakic, J. M. Laurent, A. Liolios, A. Ljubicic, G. Luzón, M. Maroudas, L. Miceli, S. Neff, I. Ortega, T. Papaevangelou, K. Paraschou, M. J. Pivovaroff, G. Raffelt, M. Rosu, J. Ruz, E. Ruiz Chóliz, I. Savvidis, S. Schmidt, Y. K. Semertzidis, S. K. Solanki, L. Stewart, T. Vafeiadis, J. K. Vogel, S. C. Yildiz, K. Zioutas
  • University of Patras
  • Université Paris-Saclay
  • CERN
  • Russian Academy of Sciences
  • Max Planck Institute for Extraterrestrial Physics
  • University of Trieste
  • University of Zaragoza
  • Istanbul Bilgi University
  • Technical University of Denmark
  • The University of Chicago
  • Chem./Materials Science Directorate
  • University of Bonn
  • Aristotle University of Thessaloniki
  • Demokritos National Centre for Scientific Research
  • University of Freiburg
  • CAS - Institute of High Energy Physics
  • National Technical University of Athens
  • Columbia University
  • University of British Columbia
  • Technische Universität Darmstadt
  • Goethe University Frankfurt
  • Ruder Boskovic Institute
  • University of Rijeka
  • University of Camerino
  • Institute for Basic Science
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Extreme Light Infrastructure - Nuclear Physics (ELI-NP)
  • Korea Advanced Institute of Science and Technology
  • Max Planck Institute for Solar System Research
  • Kyung Hee University
  • University of California at Irvine

科研成果: 期刊稿件文章同行评审

870 引用 (Scopus)

摘要

Hypothetical low-mass particles, such as axions, provide a compelling explanation for the dark matter in the universe. Such particles are expected to emerge abundantly from the hot interior of stars. To test this prediction, the CERN Axion Solar Telescope (CAST) uses a 9 T refurbished Large Hadron Collider test magnet directed towards the Sun. In the strong magnetic field, solar axions can be converted to X-ray photons which can be recorded by X-ray detectors. In the 2013-2015 run, thanks to low-background detectors and a new X-ray telescope, the signal-to-noise ratio was increased by about a factor of three. Here, we report the best limit on the axion-photon coupling strength (0.66 × 10 -10 GeV -1 at 95% confidence level) set by CAST, which now reaches similar levels to the most restrictive astrophysical bounds.

源语言英语
页(从-至)584-590
页数7
期刊Nature Physics
13
6
DOI
出版状态已出版 - 2 6月 2017
已对外发布

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