Abstract
The particle-hole dispersive optical model, proposed recently to describe the main properties of high-energy particle-hole-type excitations in medium-heavy mass spherical nuclei, is briefly presented. Unique features of the model, new developments and some implementations are discussed. In applying to the description of deep-hole states, an unitary version of the single-quasiparticle optical model is also briefly presented.
Highlights
The resonance-like structures, corresponding to simple modes of nuclear excitations, are observed in nuclear reactions at high excitation energies
That in applying to medium-heavy mass nuclei, this consideration did not lead to formulation of workable models. In this talk we present, in the main, the recently developed [3] particle-hole dispersive optical model (PHDOM), its unique features, new developments and some implementations
The effective-field method allows one to get within the PHDOM the expression for the squared energy-averaged amplitude of one-nucleon direct+semi-direct (DSD) reaction induced by a s. p. external field V0(x)
Summary
The resonance-like structures, corresponding to simple modes of nuclear excitations (singlequasiparticle and particle-hole-type states), are observed in nuclear reactions at high excitation energies (up to a few tens MeV). For these energies the mean-field concept does work. It seems, that in applying to medium-heavy mass nuclei, this consideration did not lead to formulation of workable models. That in applying to medium-heavy mass nuclei, this consideration did not lead to formulation of workable models In this talk we present, in the main, the recently developed [3] particle-hole dispersive optical model (PHDOM), its unique features, new developments and some implementations. In applying to the description of deep-hole states, an unitary version of single-quasiparticle dispersive optical model (SQDOM) [4] is briefly presented
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