CAPTURE REACTIONS ON C-14 IN NONSTANDARD BIG-BANG NUCLEOSYNTHESIS

被引：56

作者：

WIESCHER, M ^{[1
]}

GORRES, J ^{[1
]}

THIELEMANN, FK ^{[1
]}

机构：

[1] HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 363卷 / 02期

关键词：

Early universe; Nuclear reactions; Nucleosynthesis;

D O I：

10.1086/169348

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Nonstandard big bang nucleosynthesis leads to the production of 14C. The further reaction path depends on the depletion of 14C by either photon, alpha, or neutron capture reactions. The nucleus 14C is of particular importance in these scenarios because it forms a bottleneck for the production of heavier nuclei A > 14. We discuss the reaction rates of all three capture reactions at big bang conditions and show that the resulting reaction path, leading to the production of heavier elements, is dominated by the (p, γ) and (n, γ) rates, contrary to earlier suggestions.

引用

页码：340 / 343

页数：4