Alpha Transfer Effects in Oxygen Burning Reactions in Highly Evolved Stars

• 作者: He, Guozhu Li, Lei Ning, Pingzhi Shen, Hong
• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: NUCLEOSYNTHESIS OXYGEN BURNING reaction Molecular ORBITAL theory
• 年，卷（期）: 1995,（4）
• 页码范围: 312-317
• 页数: 6页
• 分类号: O4

摘要

【正】 Using the molecular orbital theory including α transfer mechanism, calculations arepresented of the sub-barrier fusion cross sections for the important astrophysically interestingreactions ¹⁶O+¹⁶O. The resulting cross sections and S-factors are much larger than previousoptical model results at E_c.m.=5 MeV and below, although they are in agreement with eachother in a higher energy region. The corresponding reaction rate at temperature 4×10⁵ K ex-ceeds the previous predictions by about 6 orders. This probably means that, in stellar interior,the occurrence of ¹⁶O+¹⁶O fusion may be easier than previously thought.