Nuclei, superheavy nuclei, and hypermatter in a chiral SU(3) model

Ch. Beckmann, P. Papazoglou, D. Zschiesche, S. Schramm, H. Stöcker, and W. Greiner
Phys. Rev. C 65, 024301 – Published 7 January 2002
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Abstract

A model based on chiral SU(3) symmetry in nonlinear realization is used for the investigation of nuclei, superheavy nuclei, hypernuclei, and metastable, exotic multistrange nuclear objects (so-called MEMOs). The model works very well in the case of nuclei and hypernuclei with one Λ particle and rules out MEMOs. Basic observables that are known for nuclei and hypernuclei are reproduced satisfactorily. The model predicts Z=120 and N=172, 184, and 198 as the next shell closures in the region of superheavy nuclei. The calculations have been performed in self-consistent relativistic mean-field approximation assuming spherical symmetry. The parameters were adapted to known nuclei.

  • Received 11 July 2001

DOI:https://doi.org/10.1103/PhysRevC.65.024301

©2002 American Physical Society

Authors & Affiliations

Ch. Beckmann*, P. Papazoglou, D. Zschiesche, S. Schramm, H. Stöcker, and W. Greiner

  • Institut für Theoretische Physik, Johann Wolfgang Goethe Universität, D-60054 Frankfurt am Main, Germany

  • *Present address: Institut für Theoretische Physik, Universität Frankfurt am Main, Robert-Mayer-Strope 8-10, D-60325 Frankfurt am Main, Germany. Tel.:+49-(0)69-7982-2638, FAX:-8350. Email address: beckmann@th.physik.uni-frankfurt.de
  • Present address: Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60439

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Vol. 65, Iss. 2 — February 2002

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