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

J. E. García-Ramos, K. Heyde, L. M. Robledo, and R. Rodríguez-Guzmán

Phys. Rev. C 89, 034313 – Published 20 March 2014

Abstract

The evolution of the total energy surface and the nuclear shape in the isotopic chain ${}^{172 - 194}{Pt}$ 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 $176 \leq A \leq 186$ .

Received 29 November 2013

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

Authors & Affiliations

J. E. García-Ramos^1,*, K. Heyde², L. M. Robledo³, and R. Rodríguez-Guzmán^4,5

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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Vol. 89, Iss. 3 — March 2014

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Physical Review C

covering nuclear physics