Proton capture to excited states ofO16:M1,

K. A. Snover

¹

,

E. G. Adelberger

²

,

P.G. Ikossi

³

et al.

A microscopic model taking into account 2p 2h configurations in magic nuclei. Calculations ofM1 excitations

“…In this case we have good agreement with experiment only for ~B(M1)T. The most collectivized i + level is shifted downwards by 1.8 MeV, as compared with the experiment. Approximately the same level of agreement was reached for one of the versions of the shell model calculations [19], however, in our calculations the set of parameters (47) is universal for light nuclei, as well as for medium and heavy ones.…”

“…Another argument for the existence of deviations from the lp 1 h predictions is the discovery of the lowlying M 1 resonance (to be more exact, strong M 1 excitations at ~ 10 MeV) in the magic nuclei 160 [19,20] , 22]. According to the lp lh approach, no M 1 resonance can exist if the p shell or sd shell is fully occupied in 160 and 4~ correspondingly.…”

“…According to the lp lh approach, no M 1 resonance can exist if the p shell or sd shell is fully occupied in 160 and 4~ correspondingly. The M1 excitation calculations within the framework of the many-particle shell model [19,23,50] are rather complicated and it is difficult to extend them to all the nuclei.…”

Lifetime measurements of neutron-rich light isotopesBe14andCCurtin1, Harwood2, Nolen3 et al. 1986Phys. Rev. Lett.Self Cite40160View full textAdd to dashboardCite

“…A complete description of the RPMS may be found elsewhere. 1 Utilizing a 540-MeV 18 0 5+ beam from the K500 cyclotron at the National Superconducting Cyclotron Laboratory, we measured the previously unknown half-lives of 14 Be and 17 C along with the half-lives of 9 Li, ll Li, 12 Be, 12 B, 14 B, and 15 B during a single twoday run. /3-decay half-lives were obtained by use of a technique which consisted of repeated measurements of the time interval between the detection of a heavyion reaction product and its associated beta particle.…”

“…The decay curves of 9 Li, n Li, 14 B, 15 B, and 17 C were fitted as an exponential decay plus constant background with use of a least-squares fitting routine. The decays of 14 Be and 12 Be were complicated by a relatively short-lived daughter product. For such motherdaughter decays we required a second beta to follow the first beta particle within approximately two daughter half-lives in order for it to be included in the mother's decay curve.…”