Abstract
The quantitative analysis of the main properties of charge-exchange giant spin-monopole resonances is performed for closed-shell parent nuclei within the semimicroscopic approach based on the continuum version of the random phase approximation and phenomenological treatment of the spreading effect. For the first time the description of direct neutron decay of the spin-monopole resonances in the β+-channel is given together with taking into account the resonance energy shift due to the spreading effect. The results of the joint analysis of the main properties of the above-mentioned giant resonances are given for the parent nuclei 48Ca and 208Pb.
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