Reviews of topical problems

Giant dipole resonance and evolution of concepts of nuclear dynamics

 a,  b,  b,  c
a National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD, 20899-3460, USA
b Lomonosov Moscow State University, Department of Physics, Leninskie Gory 1 build. 2, Moscow, 119991, Russian Federation
c Institute for Nuclear Research, Russian Academy of Sciences, prosp. 60-letiya Oktyabrya 7a, Moscow, 117312, Russian Federation

Fifty years ago, in his paper on ’Quadrupole and dipole γ emission from nuclei’, A.B. Migdal introduced implicitly the concept of a dynamic collective model in nuclear physics and used this concept to predict a giant dipole resonance. Evolution of the theory of this resonance has had an enormous influence on the formation of modern concepts relating to the dynamics of nuclei. A brief historical introduction is followed in this paper by an account of the conceptual aspects of the subsequent evolution of the ideas on the nature of the giant dipole resonance. This evolution has followed a complex path from the initial identification of a nucleus with a liquid drop to its representation as a system of independent nucleons. Recent investigations have made it possible to understand the interrelationships between these apparently diametrically opposed concepts, to bring them closer together, and to demonstrate the equivalence of the description of the giant dipole resonance with either concept.

Fulltext is available at IOP
PACS: 24.30.Cz, 21.60.Ev (all)
DOI: 10.1070/PU1995v038n12ABEH000122
Citation: Danos M, Ishkhanov B S, Yudin N P, Eramzhyan R A "Giant dipole resonance and evolution of concepts of nuclear dynamics" Phys. Usp. 38 1297–1307 (1995)
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Оригинал: Данос М, Ишханов Б С, Юдин Н П, Эрамжян Р А «Дипольный гигантский резонанс и развитие представлений о динамике ядра (К 50-летию выхода в свет работы А.Б. Мигдала "Квадрупольное и дипольное γ-излучение ядер’)» УФН 165 1345–1355 (1995); DOI: 10.3367/UFNr.0165.199512a.1345

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