par Utsunomiya, Hiroaki;Renstrøm, Therese;Tveten, G. M.;Goriely, Stéphane 
;Ari-Izumi, T.;Ingeberg, V. W.;Kheswa, B.V.;Lui, Yiu-Wing;Miyamoto, S.;Hilaire, Stéphane;Péru, S.;Koning, Arjan J.
Référence Physical Review C, 100, page (034605)
Publication Publié, 2019-09-04
;Ari-Izumi, T.;Ingeberg, V. W.;Kheswa, B.V.;Lui, Yiu-Wing;Miyamoto, S.;Hilaire, Stéphane;Péru, S.;Koning, Arjan J.Référence Physical Review C, 100, page (034605)
Publication Publié, 2019-09-04
Article révisé par les pairs
| Résumé : | Photoneutron cross sections were measured for 137Ba and 138Ba at energies below two-neutron threshold using quasimonochromatic γ -ray beams produced in laser Compton scattering at the NewSUBARU synchrotron radiation facility. The photoneutron data are used to constrain the γ -ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasiparticle random phase approximation using the Gogny D1M interaction. Supplementing the experimentally constrained γ-ray strength function with the zero-limit E1 and M1 contribu- tions, which are unique to the deexcitation mode, we discuss radiative neutron capture cross sections relevant to the s-process nucleosynthesis of barium isotopes in the vicinity of the neutron magic number 82. |
