Search for 14.4 keV solar axions emitted in the M1-transition of 57Fe nuclei with CAST
S Andriamonje, S Aune, D Autiero… - … of Cosmology and …, 2009 - iopscience.iop.org
S Andriamonje, S Aune, D Autiero, K Barth, A Belov, B Beltrán, H Bräuninger, JM Carmona…
Journal of Cosmology and Astroparticle Physics, 2009•iopscience.iop.orgWe 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 57 Fe, 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 aγ|− 1.19g aN 0+ g aN …
may be emitted in the M1 nuclear transition of 57 Fe, 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 aγ|− 1.19g aN 0+ g aN …
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 57 Fe, 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 aγ|− 1.19g aN 0+ g aN 3|< 1.36× 10− 16 GeV− 1 for m a< 0.03 eV at the 95% confidence level.
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