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The search for solar axions in the cast experiment

  • CAST Collaboration
  • Physics Department
  • University of Patras
  • University of Freiburg
  • Centre d'Études de Saclay (CEA-Saclay)
  • Goethe University Frankfurt
  • CERN
  • University of South Carolina
  • Russian Academy of Sciences
  • University of Zaragoza
  • Max Planck Institute for Extraterrestrial Physics
  • The University of Chicago
  • Technische Universität Darmstadt
  • Aristotle University of Thessaloniki
  • Demokritos National Centre for Scientific Research
  • University of British Columbia
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Ruder Boskovic Institute

科研成果: 会议稿件论文同行评审

摘要

The CAST (CERN Axion Solar Telescope) experiment at CERN searches for solar axions with energies in the keV range. It is possible that axions are produced in the core of the sun by the interaction of thermal photons with virtual photons of strong electromagnetic fields. In this experiment, the solar axions can be reconverted to photons in the transversal field of a 9 Tesla superconducting magnet. At both ends of the 10m-long dipole magnet three different X-ray detectors were installed, which are sensitive in the interesting photon energy range. Preliminary results from the analysis of the 2004 data are presented: ga < 0.9 x 10-10 GeV- 1 at 95% C.L. for axion masses ma < 0.02 eV. At the end of 2005, data started to be taken with a buffer gas in the magnet pipes in order to extend the sensitivity to axion masses up to 0.8 eV.

源语言英语
381-387
页数7
出版状态已出版 - 2006
已对外发布
活动41st Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2006 - La Thuile, 意大利
期限: 11 3月 200618 3月 2006

会议

会议41st Rencontres de Moriond on Electroweak Interactions and Unified Theories, EW 2006
国家/地区意大利
La Thuile
时期11/03/0618/03/06

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