Authors
Hoffman, C. R.; Lubna, R.; Rubino, E.; Tabor, S. L.; Auranen, K.; Bender, P. C.; Campbell, C; Carpenter, M. P.; Chen, J.; Gott, M.; Greene, J. P.; Huang, T.; Lauritsen, T.; Seweryniak, D.; Tang, T.; Wilson, G.; Wu, J.
Abstract
Information on the 38S level scheme was expanded through experimental work utilizing a fusion-evaporation reaction and in-beam -ray spectroscopy. Prompt -ray transitions were detected by the Gamma-Ray Energy Tracking Array (GRETINA) and recoiling 38S residues were selected by the Fragment Mass Analyzer (FMA). Tools based on machine-learning techniques were developed and deployed for the first time in order to enhance the unique selection of 38S residues and identify any associated -ray transitions. The new level information, including the extension of the even-spin yrast sequence through J=8(+), was interpreted in terms of a basic single-particle picture as well shell-model calculations which incorporated the empirically derived FSU interaction. A comparison between the properties of the yrast states in the even-Z, N=22 isotones from Z=14 to 20, and for 36Si38S in particular, was also presented with an emphasis on the role and influence of the neutron 1p3/2 orbital on the structure in the region.