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

Journal Article · Mon Dec 05 04:00:00 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), Journal Name: Physical Review Letters; (United States) Vol. 73:23; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

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