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Abstract

Gamma-ray spectrum from the reaction Mn55(p, γ) Fe56 at the isobaric analogue resonance at Ep = 1537 ± 4keV has been measured with a 15 cm3 Ge(Li) detector. Double and triple angular correlations at this resonance state have been measured. Proton elastic scattering was studied also at this resonance at the angles 135° and 150°. Analysis of these data yields a spin and parity assignment 2+, proton radiative width 2 ± 0.2 keV and total width 9 keV to this resonance state which is the isobaric analogue of the third excited state of Mn56 at excitation energy 0.211 MeV.