%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