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

Journal Article · Sun Jun 15 04:00:00 EDT 2014 · Nuclear Data Sheets

DOI:https://doi.org/10.1016/J.NDS.2014.07.027· OSTI ID:22436704

Goriely, S. ^[1]; Péru, S. ^[2]

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1. Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, CP-226, 1050 Brussels (Belgium)
2. CEA, DAM, DIF, F-91297 Arpajon (France)

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.

• OSTI ID: 22436704
• Journal Information: Nuclear Data Sheets, Journal Name: Nuclear Data Sheets Vol. 120; ISSN NDTSBA; ISSN 0090-3752
• Country of Publication: United States
• Language: English

Related Subjects

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