Neutron-hole strength in N = 81 nuclei
| 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 |
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