PROTON-THRESHOLD STATES IN AL-27 AND THE PRODUCTION OF AL-27 AT LOW STELLAR TEMPERATURES

被引：11

作者：

CHAMPAGNE, AE

MAGNUS, PV

SMITH, MS

HOWARD, AJ

机构：

[1] YALE UNIV,AW WRIGHT NUCL STRUCT LAB,NEW HAVEN,CT 06511

[2] TRINITY COLL,DEPT PHYS & ASTRON,HARTFORD,CT 06106

来源：

NUCLEAR PHYSICS A | 1990年 / 512卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0375-9474(90)93352-7

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The 26Mg(3He, d)27Al reaction has been employed to measure excitation energies and proton spectroscopic factors for states corresponding to 26Mg + p resonances in the vicinity of the proton-capture threshold. The width ratio Γγ/Γ was measured for three previously established resonances via a study of the 26Mg(3He, dγ)27Al reaction, and corresponding values of the proton widths were obtained. Combining this information establishes strengths for four of the states lying within 150 keV of the proton threshold. A 26Mg + p reaction rate is deduced, and its astrophysical implications are discussed. © 1990 Elsevier Science Publishers B.V.

引用

页码：317 / 332

页数：16

共 24 条

[1] NORMALIZATION OF AND FINITE-RANGE EFFECTS IN (3HE,D) AND (T,D) REACTIONS [J].