New limit on the mass of 14.4-keV solar axions emitted in an M1 transition in Fe-57 nuclei

2011
7 pages
Published in:
  • Phys.Atom.Nucl. 74 (2011) 596-602,
  • Yad.Fiz. 74 (2011) 620-626

Citations per year

201220152018202120240123456
Abstract: (Springer)
Axions of energy 14.4 keV that originated from the M1 transition in (57)Fe nuclei in the Sun were sought by using the resonance-absorption reaction A+(57)Fe -> (57)Fe* -> (57)Fe+ l (14.4 keV). Asectioned Si(Li) detector arranged in a low-backgr ound facility was used to record photons from this reaction. This resulted in setting a new limit on the axion couplings to nucleons, |-'1.19g ( )AN( ) (0) + g ( )AN( ) (3) | 3.0Oe10(-'6). Within the hadronic-axion model, the respective constraint on t he axion mass is m (A) 145 eV (at a 95% C.L.).
  • axion: mass: upper limit
  • coupling: (nucleon axion)
  • axion: energy
  • axion: solar
  • axion: absorption
  • iron: excited nucleus
  • transition: magnetic
  • photon: energy spectrum
  • experimental results
  • semiconductor detector