Spectroscopy of 34,35Si by beta decay : sd-fp shell gap and single-particle states
Nummela, S., Baumann, P., Caurier, E., Dessagne, P., Jokinen, A., Knipper, A., Scornet, G. L., Miehé, C., Nowacki, F., Oinonen, M., Radivojevic, Z., Ramdhane, M., Walter, G., Äystö, J., & Collaboration, I. (2001). Spectroscopy of 34,35Si by beta decay : sd-fp shell gap and single-particle states. Physical Review C, 63(4), Article 044316. https://doi.org/10.1103/PhysRevC.63.044316
Published inPhysical Review C
© 2001 American Physical Society.
The 34,35Al b decays have been studied at the CERN online mass separator ISOLDE by b-g, b-g-g, and b-n-g measurements in order to corroborate the low-level description of 34Si and to obtain the first information on the level structure of the N521 isotope 35Si. Earlier observed g lines in 34Al decay were confirmed and new g transitions following both b decay and b-delayed neutron emission have been established. The first level scheme of 35Si includes three excited states at 910, 974, and 2168 keV. Indication is found for Jp 5(3/2)2 and (3/2)1 for the first two excited states, respectively. Beta-decay half-life of T1/2538.6(4) ms and b-delayed neutron branching value Pn541(13)% were measured unambiguously. The significance of the single-particle energy determination at N521, Z514 for assessing the effective interaction in sd-f p shellmodel calculations is discussed and illustrated by predictions for different neutron-rich isotopes.
PublisherAmerican Physical Society
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