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26 April 2024

» pubmed » pmid12731972

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21Na(p,gamma)22Mg reaction and oxygen-neon novae
S Bishop ; R E Azuma ; L Buchmann ; A A Chen ; M L Chatterjee ; J M D’Auria ; S Engel ; D Gigliotti ; U Greife ; M Hernanz ; D Hunter ; A Hussein ; D Hutcheon ; C Jewett ; J José ; J King ; S Kubono ; A M Laird ; M Lamey ; R Lewis ; W Liu ; S Michimasa ; A Olin ; D Ottewell ; P D Parker ; J G Rogers ; F Strieder ; C Wrede ;
Date:	25 Apr 2003
Journal:	Phys Rev Lett, 90 (16), 162501
Abstract:	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.
Source:	PubMed, pmid12731972
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