21Na(p,gamma)22Mg reaction and oxygen-neon novae.
The 21Na(p,gamma)22Mg reaction is expected to play an important role in the nucleosynthesis of 22Na in oxygen-neon novae. The decay of 22Na leads to the emission of a characteristic 1.275 MeV gamma-ray line. This report provides the first direct measurement of the rate of this reaction using a radioactive 21Na beam, and discusses its astrophysical implications. The energy of the important state was measured to be E(c.m.)=205.7+/-0.5 keV with a resonance strength omegagamma=1.03+/-0.16(stat)+/-0.14(sys) meV.
Simon Fraser University, Burnaby, British Columbia, Canada.
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Bishop
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Azuma
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Buchmann
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Chen
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Chatterjee
J M
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D'Auria
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Engel
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Gigliotti
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Greife
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Hernanz
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Hunter
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Hussein
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Hutcheon
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Jewett
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José
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King
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Kubono
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Laird
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Lamey
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Lewis
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Liu
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Michimasa
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Olin
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Ottewell
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Parker
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Rogers
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Strieder
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Wrede