Level structure of 21Mg:: Nuclear and astrophysical implications

被引：11

作者：

Murphy, AS

Aliotta, M

Davinson, T

Ruiz, C

Woods, PJ

D'Auria, JM

Buchmann, L

Chen, AA

Laird, AM

Sarazin, F

Walden, P

Fulton, BR

Pearson, JE

Brown, BA

机构：

[1] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

[3] TRIUMF, Vancouver, BC V6T 2A3, Canada

[4] Univ York, York YO10 5DD, N Yorkshire, England

[5] Michigan State Univ, Natl Superconducting Cyclotron Facil, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW C | 2006年 / 73卷 / 03期

关键词：

D O I：

10.1103/PhysRevC.73.034320

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：

Resonant elastic scattering of a radioactive Na-20 beam incident upon protons in a polyethylene target has been used to probe the level structure of Mg-21 above the proton decay threshold. Three states have been observed, and their properties deduced through analysis based on the R-matrix formalism. The results improve and extend previous studies of this nucleus. An estimate of the Na-20(p,gamma)Mg-21 reaction rate, including these new data, suggests this reaction will not play a significant role in explosive hydrogen burning in astrophysical sites such as novae and x-ray bursts.

引用

页数：10

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