Chargeexchange QRPA with the Gogny Force for Axiallysymmetric Deformed Nuclei
Abstract
In recent years fully consistent quasiparticle randomphase approximation (QRPA) calculations using finite range Gogny force have been performed to study electromagnetic excitations of several axiallysymmetric deformed nuclei up to the {sup 238}U. Here we present the extension of this approach to the chargeexchange nuclear excitations (pnQRPA). In particular we focus on the Isobaric Analog and GamowTeller 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 βdecay halflives calculations for which experimental data exist and for specific isotone chains of relevance for the rprocess nucleosynthesis.
 Authors:
 Institut d'Astronomie et d'Astrophysique, Université Libre de Bruxelles, CP226, 1050 Brussels (Belgium)
 (France)
 CEA, DAM, DIF, F91297 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; GAMOWTELLER RULES; HALFLIFE; ISOBARIC ANALOGS; NUCLEAR DEFORMATION; NUCLEOSYNTHESIS; R PROCESS; RANDOM PHASE APPROXIMATION; URANIUM 238
Citation Formats
Martini, M., Email: martini.marco@gmail.com, CEA, DAM, DIF, F91297 Arpajon, Goriely, S., and Péru, S. Chargeexchange QRPA with the Gogny Force for Axiallysymmetric Deformed Nuclei. United States: N. p., 2014.
Web. doi:10.1016/J.NDS.2014.07.027.
Martini, M., Email: martini.marco@gmail.com, CEA, DAM, DIF, F91297 Arpajon, Goriely, S., & Péru, S. Chargeexchange QRPA with the Gogny Force for Axiallysymmetric Deformed Nuclei. United States. doi:10.1016/J.NDS.2014.07.027.
Martini, M., Email: martini.marco@gmail.com, CEA, DAM, DIF, F91297 Arpajon, Goriely, S., and Péru, S. 2014.
"Chargeexchange QRPA with the Gogny Force for Axiallysymmetric Deformed Nuclei". United States.
doi:10.1016/J.NDS.2014.07.027.
@article{osti_22436704,
title = {Chargeexchange QRPA with the Gogny Force for Axiallysymmetric Deformed Nuclei},
author = {Martini, M., Email: martini.marco@gmail.com and CEA, DAM, DIF, F91297 Arpajon and Goriely, S. and Péru, S.},
abstractNote = {In recent years fully consistent quasiparticle randomphase approximation (QRPA) calculations using finite range Gogny force have been performed to study electromagnetic excitations of several axiallysymmetric deformed nuclei up to the {sup 238}U. Here we present the extension of this approach to the chargeexchange nuclear excitations (pnQRPA). In particular we focus on the Isobaric Analog and GamowTeller 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 βdecay halflives calculations for which experimental data exist and for specific isotone chains of relevance for the rprocess nucleosynthesis.},
doi = {10.1016/J.NDS.2014.07.027},
journal = {Nuclear Data Sheets},
number = ,
volume = 120,
place = {United States},
year = 2014,
month = 6
}

Fully consistent axiallysymmetricdeformed Quasiparticle Random Phase Approximation (QRPA) calculations have been performed with the D1S Gogny force. Dipole responses have been calculated in Ne isotopes to study the existence of soft dipole modes in exotic nuclei. A comparison between QRPA and generator coordinate method with Gaussian overlap approximation results is done for low lying 2{sup +} states in N = 16 isotones and Ni isotopes.

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