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Indirect study of the astrophysically important 15O(alpha,gamma)19Ne reaction through 2H(18Ne,19Ne)1H

Laird, A.M., Cherubini, S., Ostrowski, A.N., Aliotta, M., Davinson, T., Di Pietro, A., Figuera, P., Galster, W., Graulich, J.S., Groombridge, D., Hinnefeld, J., Lattuada, M., Leleux, P., Michel, L., Musumarra, A., Ninane, A., Pellegriti, M.G., Shotter, A.C., Tumino, A., Vervier, J. and Woods, P. (2002) Indirect study of the astrophysically important 15O(alpha,gamma)19Ne reaction through 2H(18Ne,19Ne)1H. Physical Review C, 66 (4). Art. No. 048801. ISSN 1089-490X

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Abstract

The 15O(α,γ)19Ne 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 Ec.m.=504 keV which corresponds to a 19Ne excitation energy of ER=4.033 MeV. Results from a d(18Ne,19Ne)p experiment show that states of astrophysical interest are populated in this reaction. An upper limit for the α-branching ratio of the 4.033 MeV state was identified and branching ratios for other states in 19Ne were found to be in good agreement with stable beam based results.

Item Type: Article
Academic Units: The University of York > Physics (York)
Depositing User: York RAE Import
Date Deposited: 25 Feb 2009 15:47
Last Modified: 25 Feb 2009 18:13
Published Version: http://dx.doi.org/10.1103/PhysRevC.66.048801
Status: Published
Publisher: The American Physical Society.
Identification Number: 10.1103/PhysRevC.66.048801
URI: http://eprints.whiterose.ac.uk/id/eprint/7208

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