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 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.
Original language | English (US) |
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Article number | 002 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2009 |
Issue number | 12 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |
Keywords
- Axions
- Solar physics
ASJC Scopus subject areas
- Astronomy and Astrophysics