New limits on the resonant absorption of solar axions obtained with a 169Tm-containing cryogenic detector.

A search for resonant absorption of solar axions by 169 Tm nuclei was carried out. A newly developed approach involving low-background cryogenic bolometer based on Tm 3 Al 5 O 12 crystal was used that allowed for significant improvement of sensitivity in comparison with previous 169 Tm based experiments. The measurements performed with 8.18 g crystal during 6.6 days exposure yielded the following limits on axion couplings: | g A γ (g AN 0 + g AN 3) ≤ 1.44 × 10 - 14 GeV - 1 and | g Ae (g AN 0 + g AN 3) ≤ 2.81 × 10 - 16 . [ABSTRACT FROM AUTHOR]