Neutron occupancies and single-particle energies across the stable tin isotopes

Szwec, S. V.; Sharp, D. K.; Kay, B. P.; Freeman, S. J.; Schiffer, J. P.; Adsley, P.; Binnersley, C.; de Sereville, N.; Faestermann, T.; Ruiz, R. F. Garcia; Hammache, F.; Hertenberger, R.; Meyer, A.; Portail, C.; Stefan, I.; Vernon, A.; Wilkins, S. and Wirth, H.-F. (2021): Neutron occupancies and single-particle energies across the stable tin isotopes. In: Physical Review C, Vol. 104, No. 5, 54308

Abstract

The occupancies and vacancies of the valence neutron orbitals across the stable tin isotopic chain from 112 <= 124 have been determined. These were inferred from the cross sections of neutron-adding and-removing reactions. In each case, the reactions were chosen to have good angular-momentum matching for transfer to the low-and high-l orbitals present in this valence space. These new data are compared to older systematic studies. The effective single-neutron energies are determined by combining information from energy centroids determined from the adding and removing reactions. Two of the five orbitals are nearly degenerate, below N = 64, and approximately 2 MeV more bound than the other three, which are also degenerate.

• Item Type: Journal article
• Faculties: Physics
• Subjects: 500 Science > 530 Physics
• ISSN: 2469-9985
• Language: English