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Shape coexistence in the heavy N=Z isotopes from first principles

ORAL

Abstract

We compute low-lying collective states and electromagnetic transition for the N = Z isotopes 72Kr, 76Sr, 80Zr, and 84Mo using ab initio coupled-cluster methods. We find good agreement for B(E2)’s while rotational bands are a bit too compressed. Interestingly we also predict several co-existing shapes at large deformation.

* This work was supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Award No.~DE-FG02-96ER40963 and by SciDAC-5 (NUCLEI collaboration). Computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) programme. This research used resources of the Oak Ridge Leadership Computing Facility located at Oak Ridge National Laboratory, which is supported by the Office of Science of the Department of Energy under contract No. DE-AC05-00OR22725.

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Presenters

  • Baishan Hu

    Oak Ridge National Lab

Authors

  • Baishan Hu

    Oak Ridge National Lab

  • Zhonghao Sun

    Oak Ridge National Laboratory, Oak Ridge National Lab

  • Gaute Hagen

    Oak Ridge National Laboratory, Oak Ridge National Lab

  • Thomas Papenbrock

    University of Tennessee