A. V. Derbin, A. I. Egorov, I. A. Mitropol'skii, V. N. Muratova, N. V. Bazlov, S. V. Bakhlanov, D. A. Semenov, E. V. Unzhakov, “Search for resonant absorption of solar axions emitted in an $M1$ transition in $^{57}$Fe nuclei”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2007, Volume 85, Issue 1,Pages <nobr>15

This article is cited in 16 papers

FIELDS, PARTICLES, AND NUCLEI

Search for resonant absorption of solar axions emitted in an $M1$ transition in $^{57}$Fe nuclei

A. V. Derbin^a, A. I. Egorov^a, I. A. Mitropol'skii^a, V. N. Muratova^a, N. V. Bazlov^b, S. V. Bakhlanov^a, D. A. Semenov^ba, E. V. Unzhakov^ba

^a B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
^b Saint-Petersburg State University

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.

PACS: 14.80.Mz, 29.40.Mc

Received: 20.11.2006