7Be(p,gamma)8B astrophysical S factor from precision cross section measurements.
7Be(p,gamma)8B astrophysical S factor from precision cross section measurements.
复制标题
来自精密横截面测量的 7Be(p,gamma)8B 天体物理 S 因子。
DOI:
10.1103/physrevlett.88.041101
复制
发表时间:
2001
影响因子:
8.6
通讯作者:
A. Zyuzin
中科院分区:
文献类型:
--
作者:
A. Junghans;E. Mohrmann;Kurt Snover;T. D. Steiger;E. Adelberger;J. Casandjian;H. Swanson;L. Buchmann;S. Park;A. Zyuzin
We measured the 7Be(p,gamma)8B cross section from E(c.m.) = 186 to 1200 keV, with a statistical-plus-systematic precision per point of better than +/-5%. All important systematic errors were measured including 8B backscattering losses. We obtain S17(0) = 22.3+/-0.7(expt)+/-0.5(theor) eV b from our data at E(c.m.)< or =300 keV and the theory of Descouvemont and Baye.