3D relativistic Hartree-Bogoliubov model with a separable pairing interaction: Triaxial ground-state shapes

T. Nikšić, P. Ring, D. Vretenar, Yuan Tian, and Zhong-yu Ma
Phys. Rev. C 81, 054318 – Published 27 May 2010

Abstract

Potential-energy surfaces and pairing energy maps of nuclei with triaxial shapes are studied in the framework of the relativistic Hartree-Bogoliubov (RHB) model. The recently introduced separable pairing force, adjusted in nuclear matter to the pairing gap of the Gogny force, is employed in the pairing channel of the three-dimensional RHB model for triaxial shapes, and the density-dependent meson-exchange effective interaction (DD-ME2) is used in the particle-hole channel. Even-A Pt isotopes with triaxial ground-state shapes and Sm nuclei with γ-soft potential-energy surfaces are analyzed.

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  • Received 10 November 2009

DOI:https://doi.org/10.1103/PhysRevC.81.054318

©2010 American Physical Society

Authors & Affiliations

T. Nikšić

  • Physics Department, Faculty of Science, University of Zagreb, HR-10000 Zagreb, Croatia

P. Ring and D. Vretenar

  • Physik Department der Technischen Universität München, D-85748 Garching, Germany

Yuan Tian and Zhong-yu Ma

  • China Institute of Atomic Energy, Beijing 102413, People’s Republic of China

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Vol. 81, Iss. 5 — May 2010

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