Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrvl..93o0801m&link_type=abstract
Physical Review Letters, vol. 93, Issue 15, id. 150801
Other
38
Binding Energies And Masses, Weak-Interaction And Lepton Aspects, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, 20<=A<=38
Scientific paper
Mass measurements with a relative precision of better than 1.5×10-8 were performed on 22Mg and its reaction partners 21Na and 22Na with the ISOLTRAP Penning trap mass spectrometer at CERN, yielding the mass excesses D(22Mg)=-399.92(27) keV, D(21Na)=-2184.71(21) keV, and D(22Na)=-5181.56(16) keV. The importance of these results is twofold. First, a comparative half-life (Ft value) has been obtained for the superallowed β decay of 22Mg to further test the conserved-vector-current hypothesis. Second, the resonance energy for the 21Na proton capture reaction has been independently determined, allowing direct comparisons of observable γ radiation in nova explosions with the yield expected from models.
Beck David
Blaum Klaus
Bollen G.
Carrel F.
Delahaye P.
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