English

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

Nuclear Experiment 2023-06-21 v1

Abstract

Information on the 38^{38}S level scheme was expanded through experimental work utilizing a fusion-evaporation reaction and in-beam γ\gamma-ray spectroscopy. Prompt γ\gamma-ray transitions were detected by the Gamma-Ray Energy Tracking Array (GRETINA) and recoiling 38^{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^{38}S residues and identify any associated γ\gamma-ray transitions. The new level information, including the extension of the even-spin yrast sequence through Jπ=8(+)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-ZZ N=22N=22 isotones from Z=14Z=14 to 2020, and for 36^{36}Si-38^{38}S in particular, was also presented with an emphasis on the role and influence of the neutron 1p3/21p_{3/2} orbital on the structure in the region.

Keywords

Cite

@article{arxiv.2305.16969,
  title  = {Experimental Study of the $^{\textbf{38}}$S Excited Level Scheme},
  author = {C. R. Hoffman and R. S. Lubna and E. Rubino and S. L. Tabor and K. Auranen and P. C. Bender and C. M. Campbell and M. P. Carpenter and J. Chen and M. Gott and J. P. Greene and D. E. M. Hoff and T. Huang and H. Iwasaki and F. G. Kondev and T. Lauritsen and B. Longfellow and C. Santamaria and D. Seweryniak and T. L. Tang and G. L. Wilson and J. Wu and S. Zhu},
  journal= {arXiv preprint arXiv:2305.16969},
  year   = {2023}
}