skip to main content

Title: Charge-exchange QRPA with the Gogny Force for Axially-symmetric Deformed Nuclei

In recent years fully consistent quasiparticle random-phase approximation (QRPA) calculations using finite range Gogny force have been performed to study electromagnetic excitations of several axially-symmetric deformed nuclei up to the {sup 238}U. Here we present the extension of this approach to the charge-exchange nuclear excitations (pnQRPA). In particular we focus on the Isobaric Analog and Gamow-Teller resonances. A comparison of the predicted GT strength distribution with existing experimental data is presented. The role of nuclear deformation is shown. Special attention is paid to β-decay half-lives calculations for which experimental data exist and for specific isotone chains of relevance for the r-process nucleosynthesis.
Authors:
 [1] ;  [2] ;  [1] ;  [3]
  1. Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, CP-226, 1050 Brussels (Belgium)
  2. (France)
  3. CEA, DAM, DIF, F-91297 Arpajon (France)
Publication Date:
OSTI Identifier:
22436704
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Data Sheets; Journal Volume: 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; AXIAL SYMMETRY; BETA DECAY; CHARGE EXCHANGE; DEFORMED NUCLEI; GAMOW-TELLER RULES; HALF-LIFE; ISOBARIC ANALOGS; NUCLEAR DEFORMATION; NUCLEOSYNTHESIS; R PROCESS; RANDOM PHASE APPROXIMATION; URANIUM 238