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Shell model calculations for heavy deformed nuclei

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Czechoslovak Journal of Physics Aims and scope

Abstract

The pseudo SU(3) model is shown to be a powerful scheme for describing the excitation spectra as well asB(E2) andB(M1) transition strengths in heavy deformed nuclei. It is also useful for describing double beta decay amplitudes for transitions from the ground state of an even-even nucleus to the ground and excited states of the daughter nucleus, both for the two and zero neutrino emitting modes. The existence of selection rules which strongly restricts the decays is discussed. Anti-correlations between the quadrupole deformation and the Gamow-Teller (GT+) strength are found in an extension of the pseudo SU(3) model which explicitly includes pairing, which is also able to describe the fragmentation of the scissors mode. The projected shell model is introduced and proposed as an alternate means for studying single and double beta decay processes.

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Author information

Authors and Affiliations

  1. Dto. de física, CINVESTAV del IPN, A. P. 14-740, 07000 D.F., México, México

    J. G. Hirsch

  2. Inst. de Ciencias Nucleares, UNAM, A. P. 70-543, 04510 D.F., México, México

    O. Castaños & P. O. Hess

  3. Dto. de Física, UNLP, c.c.67, 1900, La Plata, Argentina

    O. Civitarese

  4. Dept. of Physics, Louisiana State University, 70803-4001, Baton Rouge, LA, U.S.A.

    D. Troltenier, T. Beuschel & J. P. Draayer

  5. Inst. für Theoretische Physik der Justus-Liebig-Universität, Gießen, Germany

    D. Rompf

  6. J.I.H.I.R. and Physics Division, ORNL, 37831, Oak Ridge, Tennessee, U.S.A.

    Y. Sun

  7. Dept. of Physics and Astronomy, U.T., 37996, Knozville, Tennessee, U.S.A.

    Y. Sun

Authors
  1. J. G. Hirsch
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  2. O. Castaños
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  3. P. O. Hess
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  4. O. Civitarese
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  5. D. Troltenier
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  6. T. Beuschel
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  7. J. P. Draayer
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  8. D. Rompf
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  9. Y. Sun
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Additional information

This work was supported in part by CONACyT (México), CONICET (Argentina), NSF and DOE (U.S.A.).

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Hirsch, J.G., Castaños, O., Hess, P.O. et al. Shell model calculations for heavy deformed nuclei. Czech J Phys 48, 183–190 (1998). https://doi.org/10.1023/A:1021215925148

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  • DOI: https://doi.org/10.1023/A:1021215925148

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