Shell model coupled cluster calculation

ORAL

Abstract

We present the shell model coupled-cluster calculation of open-shell nuclei. The coupled-cluster method decoupled the reference state. A secondary similarity transformation is applied to the Coupled-cluster effective Hamiltonian to get the valance and excluded space decoupled, which lead to a shell model interaction and is capable to deal with arbitrary number of valance particles. We show that the three-body terms induced by both similarity transformations are crucial for an accurate computation of ground and excited states.

*This work is supported by U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Award Numbers DEFG02-96ER40963 (University of Tennessee), DE-SC0008499 (SciDAC-3 NUCLEI), DE-SC0018223 (SciDAC-4 NUCLEI), DE-SC0015376 (Double-Beta Decay Topical Collaboration), and the Field Work Proposals ERKBP57 and ERKBP72 at Oak Ridge National Laboratory (ORNL). Computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. This research used resources of the Oak Ridge Leadership Computing Facility located at ORNL, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725.

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Presenters

  • Zhonghazo Sun

    • Univ of Tennessee, Knoxville

Authors

  • Zhonghazo Sun

    • Univ of Tennessee, Knoxville

  • Thomas F Papenbrock

    • University of Tennessee, Knoxville
    • Univ of Tennessee, Knoxville
    • University of Tennessee

  • Gaute Hagen

    • Physics Division, Oak Ridge National Laboratory, Department of Physics and Astronomy, University of Tennessee, Knoxville
    • Oak Ridge National Laboratory

  • Gustav R. Jansen

    • National Center for Computational Sciences, Oak Ridge National Laboratory, Physics Division, Oak Ridge National Laboratory
    • National Center for Computational Sciences, Oak Ridge National Laboratory

  • Titus D. Morris

    • Oak Ridge National Laboratory