Abstract

A search for resonant absorption of solar axions by Fe and Tm targets was performed. The Si(Li) detector placed inside a low-background setup was used to detect the γ-quanta appearing from the de-excitation of the low-lying nuclear levels of Fe and Tm (14.4 keV and 8.41 keV correspondingly): A+Ntarget → N∗ target +γ. The obtained data allowed us to set the new upper limits on the axion mass value: mA ≤ 145 eV at 95% c.l.

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