Abstract
A strength function for the β+/EC decay of the deformed 160g Ho (25.6 min) nucleus has been obtained from experimental data. The fine structure of the strength function S β(E) is analyzed. It is found to have a pronounced resonant structure for Gamow-Teller transitions. In S β(E) with μτ = +1 the Gamow-Teller resonance has been observed to split into two components. This splitting is associated with anisotropy of isovector density oscillation in deformed nuclei. The β+/EC strength function for first-forbidden transitions is obtained in the Coulomb (ξ) approximation. It is shown that S β(E) for first-forbidden transitions does not have a pronounced resonant structure.
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