skip to main content

SciTech ConnectSciTech Connect

Title: β-decay properties of neutron-deficient Pt, Hg, and Pb isotopes

Neutron-deficient isotopes in the lead region are well established examples of the shape coexistence phenomenon in nuclei. In this work, bulk and decay properties, including deformation energy curves, charge mean square radii, Gamow-Teller (GT) strength distributions, and β-decay half-lives, are studied in neutron-deficient Pt, Hg, and Pb isotopes. The nuclear structure involved is described microscopically from deformed quasiparticle random-phase approximation calculations with residual interactions in both particle-hole and particle-particle channels, performed on top of a self-consistent deformed quasiparticle Skyrme Hartree-Fock basis. The sensitivity to deformation of the GT strength distributions in those isotopes is proposed as an additional complementary signature of the nuclear shape. The β-decay half-lives resulting from the GT strength distributions are compared to experiment to demonstrate the ability of the method.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4]
  1. Instituto de Estructura de la Materia, IEM-CSIC, Serrano 123, E-28006 Madrid (Spain)
  2. (Spain)
  3. Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
  4. Departamento de Física Atómica, Molecular y Nuclear, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, E-28040 Madrid (Spain)
Publication Date:
OSTI Identifier:
22492477
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1681; Journal Issue: 1; Conference: Nuclear Structure and Dynamics '15: 3. international nuclear physics conference on nuclear structure and dynamics, Portoroz (Slovenia), 14-19 Jun 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BETA DECAY; COMPARATIVE EVALUATIONS; DEFORMATION; DIAGRAMS; DISTRIBUTION; GAMOW-TELLER RULES; HALF-LIFE; HARTREE-FOCK METHOD; LEAD ISOTOPES; MERCURY ISOTOPES; NEUTRON-DEFICIENT ISOTOPES; NUCLEAR STRUCTURE; PARTICLES; PLATINUM ISOTOPES; RANDOM PHASE APPROXIMATION; RESIDUAL INTERACTIONS; SKYRME POTENTIAL