Intermediate structures

Abstract

Intermediate structures have been observed in nuclear reactions in quite different branches of nuclear physics. Therefore a few most typical examples are treated briefly here from a common point of view. These are intermediate structures in neutron scattering, in induced nuclear fission, in heavy-ion molecular resonances, in giant-resonance phenomena, and isobaric-analog resonances of proton scattering. Typically the resonance widths are between those of fine structures (true compound resonances) and some coarse structures such as single-particle neutron resonances, due to an additional width contribution from spreading into fine-structure states. The structure of intermediate states is assumed to be of few-particle-few-holes nature. © 2014 Springer-Verlag Berlin Heidelberg.