Phys. Rev. Lett. 90, 162501 (2003) [4 pages]21Na(p,γ)22Mg Reaction and Oxygen-Neon NovaeSee Also: Erratum Received 20 December 2002; published 24 April 2003 The 21Na(p,γ)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 Ec.m.=205.7±0.5 keV with a resonance strength ωγ=1.03±0.16stat±0.14sys meV. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.162501
DOI:
10.1103/PhysRevLett.90.162501
PACS:
26.30.+k, 25.40.Lw, 25.60.–t, 27.30.+t
See AlsoErratum: S. Bishop et al., Erratum: 21Na(p,γ)22Mg Reaction and Oxygen-Neon Novae [Phys. Rev. Lett. 90, 162501 (2003)], Phys. Rev. Lett. 90, 229902 (2003). |
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