4 papers
Beta-decay Half Lives beyond Ca: A Systematic Survey of Decay Properties approaching the Neutron Dripline
W. -J. Ong, Z. Y. Xu, R. Grzywacz +83
In an experiment performed at the Facility for Rare Isotope Beams (FRIB) using the FRIB Decay Station initiator (FDSi), 15 new half lives of isotopes near Ca were measured.…
High-spin spectroscopy and the onset of quasicollective structures in Ga
F. E. Idoko, A. D. Ayangeakaa N. Sensharma, C. J. Chiara +30
The intermediate- and high-spin level structure of the odd- Ga nucleus was investigated via the Mg(Ca, ) fusion evaporation reaction at a beam energy…
Universal Effective Charges in the and Shells
T. H. Ogunbeku, J. M. Allmond, T. J. Gray +79
The 247-keV state in Sc, populated in the decay of Ca, is reported here as a nanosecond isomer with a half-life of 26.0(22) ns. The state is interpreted as the $…
Improving the predictive power of empirical shell-model Hamiltonians
J. A. Purcell, B. A. Brown, B. C. He +2
We present two developments which enhance the predictive power of empirical shell-model Hamiltonians for cases in which calibration data are sparse. A recent improvement in the ab…