Spherical-deformed shape coexistence for the pf shell in the nuclear shell model

Takahiro Mizusaki, Takaharu Otsuka, Michio Honma, and B. Alex Brown
Phys. Rev. C 63, 044306 – Published 5 March 2001
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Abstract

A spherical-deformed shape coexistence for semimagic pf-shell nuclei is investigated. Deformed states can arise by breaking the f7/2 submagic shell, and coexist with spherical yrast states for 54Fe. These states are shown to be primarily two-particle two-hole excitations on top of the respective correlated ground states. In addition to these modes, a four-particle–four-hole excitation can be found for 54Fe, which is related to the deformed band of doubly magic 56Ni. To investigate this shape coexistence, we use the conventional shell-model diagonalization, constrained Hartree-Fock, generator coordinate, variation-after-projection, and Monte Carlo shell-model methods.

  • Received 19 October 2000

DOI:https://doi.org/10.1103/PhysRevC.63.044306

©2001 American Physical Society

Authors & Affiliations

Takahiro Mizusaki1, Takaharu Otsuka2,3, Michio Honma4, and B. Alex Brown5

  • 1Department of Law, Senshu University, Higashimita, Tama, Kawasaki, Kanagawa 214-8580, Japan
  • 2Department of Physics, University of Tokyo, Hongo, Tokyo 113-0033, Japan
  • 3RIKEN, Hirosawa, Wako-shi, Saitama 351-0198, Japan
  • 4Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi Aizu-Wakamatsu, Fukushima 965-8580, Japan
  • 5National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824-1321

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Vol. 63, Iss. 4 — April 2001

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