Isovector <i>l</i>-forbidden magnetic dipole transitions in <sup>31</sup>Р nucleus
DOI:
https://doi.org/10.24144/2415-8038.2003.14.83-90Abstract
Experimental studies of γ-decay of isobaric analogue resonances in the 30Si(p,γ)31P reaction is carried out at the proton energy Ер = 760, 1490 and 2010 kcV. The decay schemes of the given resonances are constructed and their partial γ-widths arc determined. Angular distributions of γ-radiation are measured and analyzed at the angles θlab = 0, 30, 45, 60 and 90° with respect to the direction of proton beam. On the basis of the obtained data the probabilities of M\ transitions to the antianalogue state and l-forbidden transitions with ΔT = 1 are calculated. A conclusion is made on the mechanism of the l-prohibition breakdown due to the contribution of collective effects into the process of forming of total γ-widlh of the analogue resonances decay.
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