Underlying symmetries of realistic interactions and the nuclear many-body problem

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dc.creatorSviratcheva, K. D.
dc.creatorDraayer, J. P.
dc.creatorVary, J. P.
dc.date2007-03-22
dc.date.accessioned2026-07-07T07:53:17Z
dc.date.available2026-07-07T07:53:17Z
dc.descriptionThe present study brings forward important information, within the framework of spectral distribution theory, about the types of forces that dominate three realistic interactions, CD-Bonn, CDBonn+ 3terms and GXPF1, in nuclei and their ability to account for many-particle effects such as the formation of correlated nucleon pairs and enhanced quadrupole collective modes. Like-particle and proton-neutron isovector pairing correlations are described microscopically by a model interaction with Sp(4) dynamical symmetry, which is extended to include an additional quadrupole-quadrupole interaction. The analysis of the results for the 1f7/2 level shows that both CD-Bonn+3terms and GXPF1 exhibit a well-developed pairing character compared to CD-Bonn, while the latter appears to build up more (less) rotational isovector T = 1 (isoscalar T = 0) collective features. Furthermore, the three realistic interactions are in general found to correlate strongly with the pairing+quadrupole model interaction, especially for the highest possible isospin group of states where the model interaction can be used to provide a reasonable description of the corresponding energy spectra.
dc.description12 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0703075
dc.identifierhttp://arxiv.org/abs/nucl-th/0703075
dc.identifierPhys. Rev. C 73, 034324 (2006)
dc.identifierdoi:10.1103/PhysRevC.73.034324
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126194
dc.subjectNuclear Theory
dc.titleUnderlying symmetries of realistic interactions and the nuclear many-body problem
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