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Shape evolution and shape coexistence in Pt isotopes: Comparing interacting boson model configuration mixing and Gogny mean-field energy surfaces

J. E. García-Ramos1,*, K. Heyde2, L. M. Robledo3, and R. Rodríguez-Guzmán4,5

  • 1Departamento de Física Aplicada, Universidad de Huelva, 21071 Huelva, Spain
  • 2Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium
  • 3Departamento de Física Teórica, Universidad Autónoma de Madrid, 28049 Madrid, Spain
  • 4Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
  • 5Department of Chemistry, Rice University, Houston, Texas 77005, USA

  • *enrique.ramos@dfaie.uhu.es
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Phys. Rev. C 89, 034313 – Published 20 March, 2014

DOI: https://doi.org/10.1103/PhysRevC.89.034313

Abstract

The evolution of the total energy surface and the nuclear shape in the isotopic chain Pt172–194 are studied in the framework of the interacting boson model, including configuration mixing. The results are compared with a self-consistent Hartree-Fock-Bogoliubov calculation using the Gogny-D1S interaction and a good agreement between both approaches is found. The evolution of the deformation parameters points towards the presence of two different coexisting configurations in the region 176≤A≤186.

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Phys. Rev. C 89, 034313– Published 20 March, 2014
  • Received 29 November 2013

©2014 American Physical Society

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