corner
corner
APS » Journals » Phys. Rev. C » Volume 66 » Issue 4
< Previous Article | Next Article >

Phys. Rev. C 66, 048801 (2002) [4 pages]

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

Download: PDF (109 kB) Buy this article Export: BibTeX or EndNote (RIS)

A. M. Laird1,*, S. Cherubini2,†, A. N. Ostrowski1,‡, M. Aliotta3,§, T. Davinson1, A. Di Pietro1,**, P. Figuera3, W. Galster2,††, J. S. Graulich2, D. Groombridge1,‡‡, J. Hinnefeld2,a, M. Lattuada3, P. Leleux2, L. Michel2, A. Musumarra2,**, A. Ninane2, M. G. Pellegriti3, A. C. Shotter1,*, Spitaleri3, A. Tumino3, J. Vervier2, and P. Woods1
1Department of Physics & Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
2Institut de Physique Nucléaire, Université Catholique de Louvain, Louvain-la-Neave Belgium
3INFN-Laboratori Nazionali del Sud and Universitá di Catania, Catania, Italy

Received 3 July 2002; published 29 October 2002

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.=504keV which corresponds to a 19Ne excitation energy of ER=4.033MeV. 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.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.66.048801
DOI:
10.1103/PhysRevC.66.048801
PACS:
25.60.Je, 26.30.+k

*Present address: TRIUMF, Vancouver, Canada.

†Present address: EP3, Ruhr-Universität-Bochum, Bochum, Germany.

‡Present address: University of Mainz, Mainz, Germany.

§Present address: University of Edinburgh, Edinburgh, UK.

**Present address: INFN-Laboratorio Nazionale del Sud, Catania, Italy.

††Present address: Tohoku University, Sendai, Japan.

‡‡Present address: University of York, York, UK.

aPresent address: University of Indiana, South Bend, Indiana.

 
< Previous Article | Next Article >