Decay property of 20Na for the onset mechanism of the rapid-proton process

Details Decay property of 20Na for the onset mechanism of the rapid-proton process Decay property of 20Na for the onset mechanism of the rapid-proton process

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvc..46..361k&link_type=abstract

Physical Review C (Nuclear Physics), Volume 46, Issue 1, July 1992, pp.361-365

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Other Topics In Radioactive Decay And In-Beam Spectroscopy, 20<=A<=38, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages, Novae, Dwarf Novae, Recurrent Novae, And Other Cataclysmic Variables

Scientific paper

The decay property of 20Na was studied using a 20Mg beam to learn better the onset mechanism of the rapid-proton process. The delayed protons were successfully measured, which correspond to one of the possible 1+ states in 20Na. There is no clear beta decay to the first excited 1+ state above the proton threshold, suggesting that this state would not be the s-wave resonance in the thermal reaction of 19Ne+p as was expected before. The half-life time of 20Mg is determined to be 114+/-17 ms. The stellar reaction rate of 19Ne(p,γ)20Na is also discussed based on the present experimental result.

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