%0 Journal Article
%T Gogny-Hartree-Fock-Bogolyubov plus quasiparticle random-phase approximation predictions of the M 1 strength function and its impact on radiative neutron capture cross section
%+ Université libre de Bruxelles (ULB)
%+ Direction des Applications Militaires (DAM)
%+ Département de Physique Nucléaire (ex SPhN) (DPHN)
%+ Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM)
%+ DAM Île-de-France (DAM/DIF)
%A Goriely, S.
%A Hilaire, S.
%A Péru, S.
%A Martini, M.
%A Deloncle, I.
%A Lechaftois, F.
%< avec comité de lecture
%@ 2469-9985
%J Physical Review C
%I American Physical Society
%V 94
%N 4
%P 44306 - 44306
%8 2016
%D 2016
%R 10.1103/PhysRevC.94.044306
%Z Physics [physics]/Nuclear Experiment [nucl-ex]Journal articles
%X Valuable theoretical predictions of nuclear dipole excitations in the whole chart are of great interest for different nuclear applications, including in particular nuclear astrophysics. Here we extend our large-scale calculations of the E1 γ-ray strength function, obtained in the framework of the axially-symmetric-deformed quasiparticle random phase approximation (QRPA) based on the finite-range D1M Gogny force, to the calculation of the M1 strength function. We compare our QRPA prediction of the M1 strength with available experimental data and show that a relatively good agreement is obtained provided the strength is shifted globally by about 2 MeV and increased by an empirical factor of 2. Predictions of the M1 strength function for spherical and deformed nuclei within the valley of β stability as well as in the neutron-rich region are discussed. Its impact on the radiative neutron capture cross section is also analyzed.
%G English
%L cea-01504826
%U https://cea.hal.science/cea-01504826
%~ IN2P3
%~ CEA
%~ CSNSM
%~ CNRS
%~ UNIV-PSUD
%~ DSM-IRFU
%~ DAM
%~ CEA-UPSAY
%~ UNIV-PARIS-SACLAY
%~ UNIV-PSUD-SACLAY
%~ CEA-UPSAY-SACLAY
%~ CEA-DRF
%~ GS-PHYSIQUE