Proton decay of isolated E1 resonances with “abnormal” isospin

Qualitative analysis of partial proton and elastic radiation widths of isolated E1 resonances with “abnormal” spin has been carried out within the semimicroscopic approach based on the random phase approximation with exact consideration of the single-particle continuum (continuum random phase approximation, CRPA). The results of the calculations for such resonances in the 90Zr nucleus are compared with the available experimental data.