Giant dipole resonance and evolution of concepts of nuclear dynamics

Danos, M.; Ishkhanov, B. S.; Yudin, N.P.; Eramzhyan, R.A.

doi:10.3367/ufnr.0165.199512a.1345

Cited by 8 publications

(1 citation statement)

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“…A detailed description of the familiar (isovector, T 3 = 0) giant dipole resonance in medium-heavy mass nuclei is a long-standing theoretical problem. A number of macroscopical, semiclassical and microscopical approaches have been used to describe the photoabsorption cross section, the latter being proportional to the energy-weighted isovector dipole strength function [1]. CRPA-based microscopical approaches have been developed during the last two decades to describe the E1 strength function [2]- [5].…”

Section: Introductionmentioning

confidence: 99%

Semimicroscopical description of the simplest photonuclear reactions accompanied by excitation of the giant dipole resonance in medium-heavy mass nuclei

Rodin

Urin

2002

Phys. Rev. C

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A semimicroscopical approach is applied to describe photoabsorption and partial photonucleon reactions accompanied by the excitation of the giant dipole resonance (GDR). The approach is based on the continuum-RPA (CRPA) with a phenomenological description for the spreading effect. The phenomenological isoscalar part of the nuclear mean field, momentum-independent Landau-Migdal particle-hole interaction, and separable momentum-dependent forces are used as input quantities for the CRPA calculations. The experimental photoabsorption and partial (n, γ)-reaction cross sections in the vicinity of the GDR are satisfactorily described for 89 Y, 140 Ce and 208 Pb target nuclei. The total direct-neutron-decay branching ratio for the GDR in 48 Ca and 208 Pb is also evaluated.

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Section: Introductionmentioning

confidence: 99%