Neutron-hole strength in N = 81 nuclei

Bibliographic Details
Title: Neutron-hole strength in N = 81 nuclei
Authors: Howard, A. M., Freeman, S. J., Sharp, D. K., Bloxham, T., Clark, J. A., Deibel, C. M., Kay, B. P., Parker, P. D., Schiffer, J. P., Thomas, J. S.
Publication Year: 2020
Collection: Nuclear Experiment
Subject Terms: Nuclear Experiment
More Details: A systematic study of neutron-hole strength in the N = 81 nuclei 137Ba, 139Ce, 141Nd and 143Sm is reported. The single-neutron removal reactions (p,d) and (3He,4He) were measured at energies of 23 and 34 MeV, respectively. Spectroscopic factors were extracted from measured cross sections through a distorted-wave Born approximation analysis and centroids of single-particle strength have been established. The change in these centroid energies as a function of proton number have been compared to calculations of the monopole shift for the s1/2 and h11/2 orbitals, where the majority of the strength has been observed. Significant fragmentation of strength was observed for the d and g7/2 orbitals, particularly for the latter orbital which is deeply bound, with summed strengths that indicate a significant amount lies outside of the measured excitation energy range.
Document Type: Working Paper
DOI: 10.1103/PhysRevC.101.034309
Access URL: http://arxiv.org/abs/2003.09299
Accession Number: edsarx.2003.09299
Database: arXiv
More Details
DOI:10.1103/PhysRevC.101.034309