2001/04/30 by M. Krčmar, M. Krcmar, Z. Krečak +7 · 5 citations
Physics and Astronomy · #Astrophysics #Atomic physics #Axion #Dark Matter and Cosmic Phenomena #Excited state #Hadron #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #astro-ph #hep-ex #nucl-ex
paper · pdf · doi:10.1103/physrevd.64.115016
published as Phys.Rev.D64:115016,2001 · revtex, 4 pages with 2 figures, title revised, minor changes, matches version to appear in Phys. Rev. D
arxiv created 2001/09/10 · openalex publication_date 2001/11/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We describe a novel approach to the search for solar, near-monochromatic hadronic axions, the latter being suggested to be created in the solar core during M1 transitions between the first excited level of 7Li, at 478 keV, and the ground state. As a result of Doppler broadening, in principle these axions can be detected via resonant absorption by the same nuclide on the Earth. Excited nuclei of 7Li are produced in the solar interior by 7Be electron capture and thus the axions are accompanied by emission of 7Be solar neutrinos of energy 384 keV. An experiment was made which has yielded an upper limit on hadronic axion mass of 32 keV at the 95% confidence level.