Angular Distributions of Protons for the Two-Proton Decay of Superfluid Nuclei and Diproton Correlations

Abstract

The approach proposed by A.B. Migdal for describing the virtual singlet diproton state is used to show the effect diproton decay channel has on the width and the angular distribution of emitted protons in the two-proton decay of a parent ⁴⁵Fe nucleus is negligible. A conclusion is reached on the leading role of the two-stage virtual mechanism of the two-proton decay of the abovementioned nucleus, which corresponds to the sequential emission of two uncorrelated protons and is described in terms of the multiparticle shell nuclear model with allowance for superfluid nucleon–nucleon correlations.