Indirect study of the astrophysically important 15O(α,γ)19Ne reaction through 2H(18Ne,19Ne)1H -: art. no. 048801

被引：20
|
作者：
Laird, AM
Cherubini, S
Ostrowski, AN
Aliotta, M
Davinson, T
Di Pietro, A
Figuera, P
Galster, W
Graulich, JS
Groombridge, D
Hinnefeld, J
Lattuada, M
Leleux, P
Michel, L
Musumarra, A
Ninane, A
Pellegriti, MG
Shotter, AC
Spitaleri, C
Tumino, A
Vervier, J
Woods, P
机构：
[1] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
[2] Catholic Univ Louvain, Inst Phys Nucl, B-3000 Louvain, Belgium
[3] Univ Catania, Catania, Italy
[4] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95129 Catania, Italy
来源：
PHYSICAL REVIEW C | 2002年 / 66卷 / 04期
关键词：
D O I：
10.1103/PhysRevC.66.048801
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 O-15(alpha,gamma)Ne-19 reaction is generally considered as a potential breakout reaction from the hot CNO cycle. Under nova conditions, the reaction rate is dominated by a single sub-Coulomb resonance at E-c.m.= 504 keV which corresponds to a Ne-19 excitation energy of E-R = 4.033 MeV. Results from a d(Ne-18,Ne-19)p experiment show that states of astrophysical interest are populated in this reaction. An upper limit for the alpha-branching ratio of the 4.033 MeV state was identified and branching ratios for other states in Ne-19 were found to be in good agreement with stable beam based results.
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页数：4
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