243 articles – 3618 Notices  [english version]
 HAL : in2p3-00139314, version 1
 Physical Review Letters 93 (2004) 150801
 The Mass of $^{22}Mg$
 (2004)
 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 beta 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 gamma radiation in nova explosions with the yield expected from models.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Mot(s)-clé(s) : nuclear mass – beta-decay – nuclei with mass number 20 to 38 – mass spectroscopy – radioactive decay periods – nuclear resonances – gamma-rays
 Lien vers le texte intégral : http://cdsweb.cern.ch/record/798313
 in2p3-00139314, version 1 http://hal.in2p3.fr/in2p3-00139314 oai:hal.in2p3.fr:in2p3-00139314 Contributeur : Dominique Girod <> Soumis le : Vendredi 30 Mars 2007, 11:39:11 Dernière modification le : Vendredi 30 Mars 2007, 11:40:21