Effects of nuclear molecular configurations on the astrophysical S-factor for 16O+16O

被引：41

作者：

Diaz-Torres, A. ^{[1
]}

Gasques, L. R.

Wiescher, M.

机构：

[1] Australian Natl Univ, Dept Phys Nucl, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia

[2] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[3] Univ Notre Dame, JINA, Notre Dame, IN 46556 USA

来源：

PHYSICS LETTERS B | 2007年 / 652卷 / 5-6期

基金：

澳大利亚研究理事会; 美国国家科学基金会;

关键词：

two-center shell model; Woods-Saxon potential; molecular single-particle states; nucleus-nucleus potential; cranking mass parameter; fusion; S-factor;

D O I：

10.1016/j.physletb.2007.06.077

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The impact of nuclear molecular configurations on the astrophysical S-factor for O-16 + O-16 is investigated within the realistic two-center shell model based on Woods-Saxon potentials. These molecular effects refer to the formation of a neck between the interacting nuclei and the radial dependent collective mass parameter. It is demonstrated that the former is crucial to explain the current experimental data with high accuracy and without any free parameter, whilst in addition the latter predicts a pronounced maximum in the S-factor. In contrast to very recent results by Jiang et al., the S-factor does not decline towards extremely low values as energy decreases. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：255 / 258

页数：4

共 25 条

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