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19 April 2024

» arxiv » 0906.4488

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Search for 14.4 keV solar axions emitted in the M1-transition of 57Fe nuclei with CAST
CAST Collaboration ; S. Andriamonje ; S. Aune ; D. Autiero ; K. Barth ; A. Belov ; B. Beltrán ; H. Bräuninger ; J. M. Carmona ; S. Cebrián ; J. I. Collar ; T. Dafni ; M. Davenport ; L. Di Lella ; C. Eleftheriadis ; J. Englhauser ; G. Fanourakis ; E. Ferrer-Ribas ; H. Fischer ; J. Franz ; P. Friedrich ; T. Geralis ; I. Giomataris ; S. Gninenko ; H. Gómez ; M. Hasinoff ; F. H. Heinsius ; D. H. H. Hoffmann ; I. G. Irastorza ; J. Jacoby ; K. Jakovčić ; D. Kang ; K. Königsmann ; R. Kotthaus ; M. Krčmar ; K. Kousouris ; M. Kuster ; B. Lakić ; C. Lasseur ; A. Liolios ; A. Ljubičić ; G. Lutz ; G. Luzón ; D. Miller ; J. Morales ; A. Ortiz ; T. Papaevangelou ; A. Placci ; G. Raffelt ; H. Riege ; A. Rodríguez ; J. Ruz ; I. Savvidis ; Y. Semertzidis ; P. Serpico ; L. Stewart ; J. Vieira ; J. Villar ; J. Vogel ; L. Walckiers ; K. Zioutas ;
Date:	24 Jun 2009
Abstract:	We have searched for 14.4 keV solar axions or more general axion-like particles (ALPs), that may be emitted in the M1 nuclear transition of 57Fe, by using the axion-to-photon conversion in the CERN Axion Solar Telescope (CAST) with evacuated magnet bores (Phase I). From the absence of excess of the monoenergetic X-rays when the magnet was pointing to the Sun, we set model-independent constraints on the coupling constants of pseudoscalar particles that couple to two photons and to a nucleon g_{agamma} \|-1.19 g_{aN}^{0}+g_{aN}^{3}\|<1.36 imes 10^{-16} GeV^{-1} for m_{a}<0.03 eV at the 95% confidence level.
Source:	arXiv, 0906.4488
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