Role of isospin in the statistical decay of the giant dipole resonance built on excited states

• DOI: 10.1016/0370-2693(86)90167-x
• Publication Date: 2002-11-12T12:54:21Z
• Authors: M.N. Harakeh; D.H. Dowell; G. Feldman; E.F. Garman; R. Loveman; J.L. Osborne; K.A. Snover
• Keywords: Giant resonance

Abstract The statistical γ-decay of the giant dipole resonance built on excited states was investigated in several nuclei in the sd-shell region. The yield of high-energy γ-rays in self-conjugate nuclei populated by T = 0 entrance channels was found to be strongly inhibited compared to the yield from T ≠ 0 entrance channels and compared to that in nuclei with Z ≠ Z . This can be explained as due to good isospin purity in the compound nuclear states at high excitation energy.