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Pairing effects on the collectivity of quadrupole states around 32Mg

  • ENAM 2004
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Abstract.

The anomalous E2 properties of the first 2+ states in neutron-rich nuclei 32Mg and 30Ne are studied by the Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) calculations. The large B(E2) values and the low excitation energies of the first 2+ states are well described by the HFB plus QRPA calculations with spherical symmetry. We conclude that pairing effects account largely for the anomalously large quadrupole collectivity.

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Authors and Affiliations

  1. Heavy Ion Nuclear Physics Laboratory, RIKEN, Hirosawa 2-1, 351-0198, Wako, Saitama, Japan

    M. Yamagami

  2. Institut de Physique Nucléaire, IN2P3-CNRS, 91406, Orsay Cedex, France

    Nguyen Van Giai

Authors
  1. M. Yamagami
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  2. Nguyen Van Giai
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Correspondence to M. Yamagami.

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Yamagami, M., Van Giai, N. Pairing effects on the collectivity of quadrupole states around 32Mg. Eur. Phys. J. A 25 (Suppl 1), 573–574 (2005). https://doi.org/10.1140/epjad/i2005-06-095-y

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  • DOI: https://doi.org/10.1140/epjad/i2005-06-095-y

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