On an intermediate structure of giant analog resonances in medium and heavy nuclei

Zhivopistsev, F.A.; Shitikova, K.V.

doi:10.1007/bf01596041

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1998

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“…The papers of Blann et al, as well as those of their followers, (Zhivopistsev et al 1973, 1982, Burtebaev et al 1978, 1982, Galkin et al 1979, 1980, 1984, Blekhman et al 1983 started with a level scheme of Woods-Saxon (Woods and Saxon 1954), Nilsson (1955), Seeger and Perisho (1967) or Seeger and Howard (1975), and by folding unperturbed states, they obtained densities with specified particle and hole numbers.…”

Section: Realistic Densitiesmentioning

confidence: 99%

Particle-hole state densities in pre-equilibrium nuclear reaction models

Běták¹,

Hodgson²

1998

Rep. Prog. Phys.

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The particle-hole level and state densities required to calculate the cross sections of preequilibrium nuclear reactions are reviewed. Using the equidistant spacing model, explicit expressions are found for the total density of states and for the density of final accessible states. These are modified to take account of the restrictions due to the Pauli principle and the finite depth of the nuclear potential. The dependencies of the densities on spin, isospin, linear momentum and pairing are described. The effects of departures from the equidistant spacing model, particularly those due to shell structure, are also discussed. Some comparisons are made with realistic densities obtained by full combinatorial calculations Some recommendations are made concerning the best choices to be made for pre-equilibrium calculations, combining accuracy and convenience.

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