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Isospin symmetry and giant resonance in nuclei of mass number A = 14

Journal Article · · Physics of Atomic Nuclei
An analysis of the cross sections for photon absorption by isobar nuclei {sup 14}C and {sup 14}N in the giant-dipole-resonance region demonstrates a high degree of isospin symmetry for this type of collective excitations in the above nuclei. Giant resonances in A = 14 isobar nuclei are related by a simple rescaling procedure that is based on the fact that, for these nuclei, the isospin remains a good quantum number in the process of dipole excitations of energy up to about 40 MeV. The features of the isospin splitting of the giant resonance in the {sup 14}C nucleus are refined. The shape of the cross section for photoabsorption in the {sup 14}C nucleus-in particular, a large width of the giant resonance in this nucleus-is exhaustively explained.
OSTI ID:
21075865
Journal Information:
Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 6 Vol. 70; ISSN 1063-7788; ISSN PANUEO
Country of Publication:
United States
Language:
English

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