Systematic investigation of low-lying dipole modes using the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory

Shuichiro Ebata, Takashi Nakatsukasa, and Tsunenori Inakura
Phys. Rev. C 90, 024303 – Published 7 August 2014; Erratum Phys. Rev. C 92, 049902 (2015)

Abstract

Systematic investigations of the electric dipole (E1) modes of excitation are performed using the canonical-basis time-dependent Hartree-Fock-Bogoliubov (Cb-TDHFB) theory. The Cb-TDHFB is able to describe dynamical pairing correlations in excited states of nuclear systems. We apply the method to the real-time calculation of linear response in even-even nuclei with Skyrme functionals. Effects of shell structure, neutron skin, deformation, and neutron chemical potential (separation energy) are studied in a systematic way. This reveals a number of characteristic features of the low-energy E1 modes. We also find a universal behavior in the low-energy E1 modes for heavy neutron-rich isotopes, which suggests the emergence of decoupled E1 peaks beyond N=82.

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  • Received 28 March 2014

DOI:https://doi.org/10.1103/PhysRevC.90.024303

©2014 American Physical Society

Erratum

Authors & Affiliations

Shuichiro Ebata1,2,3, Takashi Nakatsukasa3,4, and Tsunenori Inakura3,5

  • 1Meme Media Laboratory, Hokkaido University, Sapporo, 060-0813, Japan
  • 2Center for Nuclear Study, University of Tokyo, Wako-shi 351-0198, Japan
  • 3RIKEN Nishina Center, Wako-shi 351-0198, Japan
  • 4Center for Computational Sciences, University of Tsukuba, Tsukuba 305-8571, Japan
  • 5Department of Physics, Graduate School of Science, Chiba University, Chiba, 263-8522, Japan

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Issue

Vol. 90, Iss. 2 — August 2014

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