Structural evolution in A ≈100 nuclei within the mapped interacting boson model based on the Gogny energy density functional

Nomura, K. and Rodriguez-Guzmán, R. and Robledo, L. M. (2016) Structural evolution in A ≈100 nuclei within the mapped interacting boson model based on the Gogny energy density functional. Physical Review C, 94 (4). pp. 44314-19. ISSN 2469-9985

[img]
Preview
PDF - Published Version
Language: English

Download (5MB) | Preview

Abstract

The structure of even-even neutron-rich Ru, Mo, Zr, and Sr nuclei in the A ≈ 100 mass region is studied within the interacting boson model (IBM) with microscopic input from the self-consistent mean-field approximation based on the Gogny-D1M energy density functional. The deformation-energy surface in the quadrupole deformation space (β,γ ), computed within the constrained Hartree–Fock–Bogoliubov framework, is mapped onto the expectation value of the appropriately chosen IBM Hamiltonian with configuration mixing in the boson condensate state. The mapped IBM Hamiltonian is used to study the spectroscopic properties of 98–114Ru, 96–112Mo, 94–110Zr, and 92–108Sr. Several cases of γ -soft behavior are predicted in Ru and Mo nuclei while a pronounced coexistence between strongly prolate and weakly oblate deformed shapes is found for Zr and Sr nuclei. The method describes well the evolution of experimental yrast and nonyrast states as well as selected B(E2) transition probabilities.

Item Type: Article
Date: 17 October 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: © 2016 American Physical Society. Received 15 June 2016; revised manuscript received 6 September 2016; published 17 October 2016.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 29 Nov 2016 20:14
Last Modified: 29 Nov 2017 16:37
URI: http://digre.pmf.unizg.hr/id/eprint/5362

Actions (login required)

View Item View Item