Neutron and Alpha Structure in Neutron Deficient Nuclei in Astrophysics

摘要：

　　The paper includes discussions on the important role of neutron and alpha configurations in proton-rich nuclei in nuclear astrophysics in terms of nucleosynthesis under extremely high-temperature hydrogenburning conditions.The vp-process, which is supposed to take place at the very early epoch of type Ⅱ supernovae, has considerable neutrons and alphas together with protons.The alpha-induced reactions on proton-rich unstable nuclei in the light mass regions is expected to play a crucial role, but very few of them were investigated well yet because of the experimental difficulties.Specifically, I report our recent experimental effort for the breakout process from the pp-chain region, 7Be(α, γ)11C(α,p)14N under the vp-process.The neutron-induced reactions on proton-rich nuclei, which is even more a challenging subject, were investigated previously for very few nuclei.One possible experimental method is the Trojan Horse Method (THM).We successfully have applied THM to the 18F(n,α)14N reaction study with an unstable beam of 18F.

关键词： alpha-and neutron-induced stellar reactions in proton-rich nuclear region vp-process pp-chain breakout nuclear cluster structures in astrophysics low-energy RI beam

作者: S.Kubono HE Jianjun H.Yamaguchi D.M.Kahl S.Hayakawa T.Teranishi S.Cheribini M.Gulino Y.K.Kwon T.Hashimoto Y.Wakabayashi N.Iwasa S.Kato T.Komatsubara D.N.Binh L.H.Khiem N.N.Duy T.Kawabata C.Spitaleri G.G.Rapisarda M.La Cognata L.Lamia R.G.Pizzone S.Romano A.Coc N.de Sereville F.Hammache G.Kiss S.Bishop

作者单位: Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China;RIKEN Nishina Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China Center for Nuclear Study, University of Tokyo, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan Department of Physics, Kyushu University, 6-10-1 Hakozaki, Fukuoka 812-858, Japan Laboratori Nazionali del Sud, Istituto Nazionale di Fisica Nucleare, Via S.Sofia 62, 95125 Catania, Institute for Basic Science, 70, Yuseong-daero 1689-gil, Yuseong-gu, Daejeon 305-81, Korea RIKEN Nishina Center,2-1 Hirosawa, Wako, Saitama 351-0198, Japan Department of Physics, Tohoku University, Aoba, Sendai, Miyagi 980-8578, Japan Department of Physics, Yamagata University, Yamagata 990-8560, Japan Institute of Physics, Vietnam Academy for Science and Technology, Hanoi, Vietnam Department of Physics, Kyoto University, Kyoto 660-8502, Japan IN2P3, F-91405 Orsay, France Institute for Nuclear Research (MTA-ATOMKI), Debrecen, Hungary TUM, Garching, Germany

会议类型: 国际会议

会议名称: The Fifth International Conference on Proton-emitting Nuclei(第五届原子核质子发射国际会议)(PROCON2015)

会议地点: 兰州

会议语种:英文

页码: 212-216

在线出版日期: 2015-07-06（万方平台首次上网日期，不代表论文的发表时间）