Experimental Study of the $^{\textbf{38}}$S Excited Level Scheme

C. R. Hoffman, R. S. Lubna, E. Rubino, S. L. Tabor, K. Auranen, P. C. Bender, C. M. Campbell, M. P. Carpenter, J. Chen, M. Gott, J. P. Greene, D. E. M. Hoff, T. Huang, H. Iwasaki, F. G. Kondev, T. Lauritsen, B. Longfellow, C. Santamaria, D. Seweryniak, T. L. Tang, G. L. Wilson, J. Wu, S. Zhu
Nuclear Experiment, Nuclear Experiment (nucl-ex)
2023-05-25 16:00:00
Information on the $^{38}$S level scheme was expanded through experimental work utilizing a fusion-evaporation reaction and in-beam $\gamma$-ray spectroscopy. Prompt $\gamma$-ray transitions were detected by the Gamma-Ray Energy Tracking Array (GRETINA) and recoiling $^{38}$S residues were selected by the Fragment Mass Analayzer (FMA). Tools based on machine-learning techniques were developed and deployed for the first time in order to enhance the unique selection of $^{38}$S residues and identify any associated $\gamma$-ray transitions. The new level information, including the extension of the even-spin yrast sequence through $J^{\pi} = 8^{(+)}$, 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 $^{36}$Si-$^{38}$S in particular, was also presented with an emphasis on the role and influence of the neutron $1p_{3/2}$ orbital on the structure in the region.
PDF: Experimental Study of the $^{\textbf{38}}$S Excited Level Scheme.pdf
Empowered by ChatGPT