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Phys. Rev. C 74, 044311 (2006) [12 pages]

alpha-cluster structure and exotic states in a self-consistent model for light nuclei

J. A. Maruhn
Institut für Theoretische Physik, Universität Frankfurt, Max-von-Laue-Str. 1, 60054 Frankfurt am Main, Germany

Masaaki Kimura
Yukawa Institute for Theoretical Physics, Kyoto 606-8052, Japan

S. Schramm
Institut für Theoretische Physik and Center for Scientific Computing, Universität Frankfurt, Max-von-Laue-Str. 1, 60054 Frankfurt am Main, Germany

P.-G. Reinhard
Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, Staudtstrasse 7, 91058 Erlangen, Germany

H. Horiuchi
Physics Department, Kyoto University, Kyoto 606-8052, Japan

A. Tohsaki
Suzuki Corporation, 46-22 Kamishima, Kadoma 571-0071, Japan
Received 27 June 2006; published 26 October 2006

In this article we examine to what extent traces of alpha clustering can be found in mean-field ground states of nalpha nuclei from 8Be through 36Ar as well as in some superdeformed states in 32S, 36Ar, and 40Ca. For this purpose we calculate the overlap of the mean-field Slater determinant with one containing pure Gaussians and perfect spin and isospin symmetry, optimizing the overlap by varying the alpha-particle positions and radii. In some cases a coherent sum over different configurations is also employed. We find quite large overlaps for some of the lighter systems that diminish for nuclei above 20Ne but again strong clustering in 36Ar.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.74.044311
DOI: 10.1103/PhysRevC.74.044311
PACS: 21.60.Gx; 21.60.Jz; 27.20.+n; 27.30.+t
  • 21.60.Gx
    Nuclear cluster models
  • 21.60.Jz
    Hartree-Fock and random-phase approximations in nuclei
  • 27.20.+n
    Properties of nuclei with 6 <= A <= 19
  • 27.30.+t
    Properties of nuclei with 20 <= A <= 38
  • YEAR: 2006

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