First experimental limit on the 19Ne(p,γ)20Na resonance strength, of astrophysical interest

Details First experimental limit on the 19Ne(p,γ)20Na resonance strength, of astrophysical interest First experimental limit on the 19Ne(p,γ)20Na resonance strength, of astrophysical interest

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvl..73.3066p&link_type=abstract

Physical Review Letters, Volume 73, Issue 23, December 5, 1994, pp.3066-3069

Physics

35

Radiative Capture, 20<=A<=38, Elementary Particle Processes

Scientific paper

The 19Ne(p,γ)20Na 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 19Ne beams with novel detection techniques to measure β+-delayed α radioactivity of 20Na 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 20Na and the stellar reaction are discussed.

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