First experimental limit on the [sup 19]Ne([ital p],[gamma])[sup 20]Na resonance strength, of astrophysical interest

Journal Article · Mon Dec 05 00:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.73.3066· OSTI ID:7062265

Page, R D; Vancraeynest, G; Shotter, A C; Huyse, M; Bain, C R; Binon, F; Coszach, R; Davinson, T; Decrock, P; Delbar, T; Duhamel, P; Gaelens, M; Galster, W; Leleux, P; Licot, I; Lienard, E; Lipnik, P; Michotte, C; Ninane, A; Sellin, P J ; Suekoesd, C; Van Duppen, P; Vanhorenbeeck, J; Vervier, J; Wiescher, M; Woods, P J ^[1]

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1. Department of Physics and Astronomy, University of Edinburgh, The King's Buildings, Edinburgh EH9 3JZ (United Kingdom) Instituut voor Kern-en Stralingsfysika, Katholieke Universiteit Leuven, Leuven, B-3001 (Belgium) Institut d'Astronomie, d'Astrophysique et de Geophysique, Universite Libre de Bruxelles, B-1050 Bruxelles (Belgium) Institut de Physique Nucleaire, Universite Catholique de Louvain, Louvain-la-Neuve, B-1348 (Belgium) Institute of Nuclear Techniques, Technical University of Budapest, H-1521 Budapest (Hungary) Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

The [sup 19]Ne([ital p],[gamma])[sup 20]Na reaction may influence considerably the reaction flow between the CNO and NeNa mass regions in high temperature hydrogen burning conditions. The 447 keV resonance has been studied by exploiting radioactive [sup 19]Ne beams with novel detection techniques to measure [beta][sup +]-delayed [alpha] radioactivity of [sup 20]Na nuclei produced in reactions with polyethylene targets. A 90% C.L. upper limit of 18 meV for the resonance strength has been determined and implications for the spin assignment of the 2.646 MeV state in [sup 20]Na and the stellar reaction are discussed.

• OSTI ID: 7062265
• Journal Information: Physical Review Letters; (United States), Vol. 73:23; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NEON 19
PROTON REACTIONS
RESONANCE
STRENGTH FUNCTIONS
ALPHA DECAY
ASTROPHYSICS
DETECTION
HYDROGEN BURNING
NEON 19 BEAMS
PHOTONS
RADIOACTIVE ION BEAMS
SODIUM 20
SPIN
STELLAR RADIATION
ALKALI METAL ISOTOPES
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BOSONS
CHARGED-PARTICLE REACTIONS
DECAY
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FUNCTIONS
HADRON REACTIONS
ION BEAMS
ISOTOPES
LIGHT NUCLEI
MASSLESS PARTICLES
NEON ISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-ODD NUCLEI
PARTICLE PROPERTIES
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SODIUM ISOTOPES
STAR BURNING
663430* - Nucleon-Induced Reactions & Scattering- (1992-)
663450 - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663570 - Nuclear Mass Ranges- A=150-189- (1992-)