OVERALL NORMALIZATION OF THE ASTROPHYSICAL S-FACTOR AND THE NUCLEAR VERTEX CONSTANT FOR BE-7(P,GAMMA)B-8 REACTIONS

被引：262

作者：

XU, HM ^{[1
]}

GAGLIARDI, CA ^{[1
]}

TRIBBLE, RE ^{[1
]}

MUKHAMEDZHANOV, AM ^{[1
]}

TIMOFEYUK, NK ^{[1
]}

机构：

[1] UKBEK ACAD SCI,INST NUCL PHYS,TASHKENT 702132,UZBEKISTAN

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.73.2027

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We point out a simple relation between the nuclear vertex constant (NVC) and the overall normalization of the astrophysical S factor. Using predicted values of the NVC for the virtual decay of B-8 --> Be-7 + p, we find S-17(0) approximate to 17.6 eVb for Be-7(p, gamma)B-8 reactions, consistent with the low values extrapolated from direct capture measurements by Filippone et al. and by Vaughn et al. New possibilities, using proton transfer reactions, to measure the astrophysical S factor indirectly are proposed.

引用

页码：2027 / 2030

页数：4

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