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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. © 1986.

Original publication




Journal article


Physics Letters B

Publication Date





297 - 301