Search for resonant absorption of solar axions emitted in an M1 transition in 57Fe nuclei

A. V. Derbin, A. I. Egorov, I. A. Mitropol'Sky, V. N. Muratova, N. V. Bazlov, S. V. Bakhlanov, D. A. Semenov, E. V. Unzhakov

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The resonant absorption of solar axions by 57Fe nuclei, which is accompanied by the excitation of the first excited nuclear level: A + 57Fe → 57Fe*→ 57Fe + γ(14.4 keV), is sought. To seek 14.4-keV photons, a Si(Li) detector and an enriched 57Fe target are used. The detector and target are placed in a low-background setup equipped with passive and active shieldings. As a result, a new upper limit m A ≤ 360 eV (at 90% C.L.) has been determined for the axion mass.

Original languageEnglish
Pages (from-to)12-16
Number of pages5
JournalJETP Letters
Volume85
Issue number1
DOIs
StatePublished - 1 Jan 2007

Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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