Realistic Two-body Interactions in Many-nucleon Systems: Correlated Motion beyond Single-particle Behavior

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In the framework of the theory of spectral distributions we perform an overall comparison of three modern realistic interactions, CD-Bonn, CD-Bonn+3terms, and GXPF1 in a broad range of nuclei in the upper fp shell and study their ability to account for the development of isovector pairing correlations and collective rotational motion in many-particle nuclear systems. Our findings reveal a close similarity between CD-Bonn and CD-Bonn+3terms, while both interactions possess features different from the ones of GXPF1. The GXPF1 interaction is used to determine the strength parameter of a quadrupole term that augments an isovector-pairing model interaction with Sp(4) dynamical symmetry, ... continued below

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12 pages

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Sviratcheva, K.D.; Draayer, J.P. & /Louisiana State U. /Iowa State U. /LLNL, Livermore /SLAC June 27, 2006.

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In the framework of the theory of spectral distributions we perform an overall comparison of three modern realistic interactions, CD-Bonn, CD-Bonn+3terms, and GXPF1 in a broad range of nuclei in the upper fp shell and study their ability to account for the development of isovector pairing correlations and collective rotational motion in many-particle nuclear systems. Our findings reveal a close similarity between CD-Bonn and CD-Bonn+3terms, while both interactions possess features different from the ones of GXPF1. The GXPF1 interaction is used to determine the strength parameter of a quadrupole term that augments an isovector-pairing model interaction with Sp(4) dynamical symmetry, which in turn is shown to yield a reasonable agreement with the experimental low-lying energy spectra of {sup 58}Ni and {sup 58}Cu.

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12 pages

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  • Report No.: SLAC-PUB-11903
  • Grant Number: AC02-76SF00515
  • DOI: 10.2172/885281 | External Link
  • Office of Scientific & Technical Information Report Number: 885281
  • Archival Resource Key: ark:/67531/metadc892364

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  • June 27, 2006

Added to The UNT Digital Library

  • Sept. 23, 2016, 2:42 p.m.

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  • Dec. 7, 2016, 8:13 p.m.

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Sviratcheva, K.D.; Draayer, J.P. & /Louisiana State U. /Iowa State U. /LLNL, Livermore /SLAC. Realistic Two-body Interactions in Many-nucleon Systems: Correlated Motion beyond Single-particle Behavior, report, June 27, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc892364/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.