文章基本信息

标题：Investigation of Nucleosynthesis Capture Reactions by Using 8Li Radioactive Beam Transfer reactions.
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作者：V. Guimarães ; O. Camargo ; R. Lichtenthäler, A.,Barioni 等
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：From angular distribution and DWBA analysis of one nucleon transfer reactions it is possible to obtain spectroscopic factors of bound systems. Angular distributions for peripheral transfer reactions can alternately be used to determine the asymptotic normalization coefficient (ANC). ANC coefficients specify the normalization of the tail of the ovelap function, and consequently can be used to normalize astrophysical S-factors for direct capture reactions at stellar energies. Angular distributions for the elastic scattering 9Be(8Li,8Li)9Be and neutron transfer reactions 9Be(8Li,7Li)10Be and 9Be(8Li,9Li)8Be have been measured with a 27 MeV 8Li radioactive nuclear beam. Spectroscopic factors and the corresponding Asymptotic Normalization Coefficients (ANC) for 8Lin=9Li and 7Lin=8Li bound system were obtained from the comparison between the experimental differential cross section and FR-DWBA (Finite Range Distorted Wave Born Approximation) calculations with the code FRESCO. The ANCs obtained can be used to normalize the direct capture cross section of the 8Li(n,g)9Li and 7Li(n,g)8Li capture reactions cross section at low energy.