par Nyhus, Hilde Therese;Renstrøm, Therese;Utsunomiya, Hiroaki;Goriely, Stéphane ;Filipescu, D.M.;Gheorghe, I.;Tesileanu, O.;Glodariu, T.;Shima, Tadashi;Takahisa, K.;Miyamoto, S;Lui, Yiu-Wing;Hilaire, Stéphane;Péru, S.;Martini, Marco ;Siess, Lionel ;Koning, Arjan J.
Référence Physical review. C. Nuclear physics, 91, 1, 015808
Publication Publié, 2015-01
Référence Physical review. C. Nuclear physics, 91, 1, 015808
Publication Publié, 2015-01
Article révisé par les pairs
Résumé : | Photoneutron cross sections were measured for five stable Nd isotopes, 143,144,145,146,148Nd, near neutron threshold with highly monochromatic laser-Compton scattering γ rays. The photoneutron data were compared with the calculations performed with the talys reaction code with inputs of the Skyrme Hartree-Fock-Bogoliubov (HFB) plus quasi-particle random phase approximation (QRPA) model and the axially symmetric deformed Gogny HFB plus QRPA model of E1 γ-ray strength. Using the γ-ray strength function constrained by the present photoneutron data, a thorough analysis of the reverse (n,γ) cross sections is made. Radiative neutron capture cross sections for an s-process branching-point nucleus in the rare earth region, Nd147 with the half-life 10.98 d, are deduced with the γ-ray strength function method. The impact of the newly evaluated 147Nd(n,γ)148Nd cross section on s-process nucleosynthesis is discussed. |