par Makinaga, Ayano;Harada, Hideo;Goko, Shinji;Kitatani, Fumito;Hara, Kaoru K.Y.;Hohara, Shinya;Lui, Yiu-Wing;Utsunomiya, Hiroaki;Kaihori, Takeshi;Yamagata, Tamio;Akimune, Hidetoshi;Goriely, Stéphane 
;Toyokawa, Hiroyuki;Matsumoto, Tersuro;Harano, Hideki
Référence AIP Conference Proceedings, 1016, page (134-139)
Publication Publié, 2008
;Toyokawa, Hiroyuki;Matsumoto, Tersuro;Harano, HidekiRéférence AIP Conference Proceedings, 1016, page (134-139)
Publication Publié, 2008
Article révisé par les pairs
| Résumé : | Photoneutron cross sections were measured for 80Se near the neutron separation energy with laser Compton-backscattered γ-ray beams at AIST. Neutron capture rates are evaluated for 79Se with the photoreaction data as experimental constraints on the El γ-strength function, a key parameter in the Hauser-Feshbach statistical model calculation. Solving the set of differential equations under a single neutron exposure, we analyzed the solar abundance ratio of the weak components of 80Kr and 82Kr in terms of the s-process branching at 79Se. We discuss the region of temperature and neutron density allowed for the weak s-process nucleosynthesis. |
