THE FATE OF BE-7 IN THE SUN

被引:122
作者
JOHNSON, CW
KOLBE, E
KOONIN, SE
LANGANKE, K
机构
[1] W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena
[2] Institut für Theoretische, Physik I, Universität Münster, D-4400 Münster
关键词
NUCLEAR REACTIONS; NUCLEOSYNTHESIS; ABUNDANCES; SUN;
D O I
10.1086/171431
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We reexamine the electron- and proton-capture rates of Be-7 important to the solar neutrino "problem." Although the assumptions implied by the traditional Debye approximation for plasma screening are not valid, a careful numerical study changes the electron capture rate by less than 2%. We extrapolate experimental data on the proton capture reaction to astrophysically relevant energies using an energy dependence that includes d-wave scattering and is shown to be relatively independent of the model space and interaction used. We find that the solar proton capture rate is lowered by approximately 7% from the currently accepted value.
引用
收藏
页码:320 / 327
页数:8
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