Reactions with radioactive beams and explosive nucleosynthesis
Reactions with radioactive beams and explosive nucleosynthesis
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DOI：
10.1098/rsta.1998.0265
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发表时间：
1998-09
期刊：
影响因子：
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通讯作者：
M. Wiescher;H. Schatz;A. Champagne
中科院分区：
文献类型：
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作者：
M. Wiescher;H. Schatz;A. Champagne
本文总结了我们目前对短寿命粒子核反应的理解，这些短寿命粒子与恒星爆炸场景中的核合成和能量产生有关。它讨论了对远离稳定性的反应的数据的需求，并简要描述了目前用放射性束流测量的可能性。本文概述了不同爆炸燃烧情况下的核合成方面。讨论了新星爆炸氢燃烧和X射线爆发中质子俘获反应对短寿命原子核的可能影响。还讨论了II型超新星坍塌阶段弱相互作用过程的各个方面。最后，我们给出了II型超新星中微子驱动激波中α复合开始的关键反应，并讨论了r过程路径的核结构效应。
This paper summarizes our present understanding of nuclear reactions with short–lived particles, which are relevant for the nucleosynthesis and energy generation in explosive stellar scenarios. It discusses the need for data on reactions far off stability and presents a short description of the present possibilities for measurements with radioactive beams. The paper presents an overview of the nucleosynthesis aspects for different explosive burning scenarios. The possible influence of proton capture reactions on short–lived nuclei are discussed for explosive hydrogen burning in novae and X–ray bursts. Also discussed are various aspects of weak–interaction processes during the collapse phase of a type–II supernova. Finally, we present key reactions for the onset of the α recombination in the neutrino–driven shock of type–II supernovae, and discuss nuclear structure effects forthe r–process path.