• A. V. Derbin
  • S. B. Bakhlanov
  • A. I. Egorov
  • I. A. Mitropolsky
  • V. N. Muratova
  • D. A. Semenov
  • E. V. Unzhakov

We searched for resonant excitation of the first excited state of the 169Tm nucleus by axions formed inside the Sun by the Primakoff effect, A + 169Tm → 169Tm* → 169Tm + γ (8.41keV). Gamma quanta with an energy of 8.41keV were registered by a sectionalized Si(Li) detector installed in a low-background setup. As a result, we set a new upper limit for the photon to axion coupling constant, g(GeV-1)mA(eV) ≤ 1.06 × 10-5, which for a hadronic axion model corresponds to a mass limit of mA ≤ 169 eV at a 90% confidence level.

Original languageEnglish
Pages (from-to)481-486
Number of pages6
JournalBulletin of the Russian Academy of Sciences: Physics
Volume74
Issue number4
DOIs
StatePublished - 1 Apr 2010

    Scopus subject areas

  • Physics and Astronomy(all)

ID: 42278390