Y87 states populated by single-proton stripping

J. V. Maher, J. R. Comfort, G. C. Morrison

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The Sr86(He3,d)Y87 reaction was studied at a laboratory beam energy of 20 MeV to test the possible closed-subshell behavior of the 38-proton configuration. The ground-state Q value is found to be 0.346 ± 0.015 MeV. Several new states were identified below an excitation energy of 3.45 MeV. A distorted-wave analysis was used to assign l values for the stripping transitions. Spectroscopic strengths agree well with sum-rule expectations for the 2p, 1f, and 1g72 configurations. Comparison with the results of Picard and Bassani for the Sr88(He3,d)Y89 reaction indicates qualitative agreement with shell-model expectations for 2p and 1g strengths but significant deviations for 1f strength and for low-lying 2d strength.

Original languageEnglish (US)
Pages (from-to)1162-1168
Number of pages7
JournalPhysical Review C
Issue number3
Publication statusPublished - 1971
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Maher, J. V., Comfort, J. R., & Morrison, G. C. (1971). Y87 states populated by single-proton stripping. Physical Review C, 3(3), 1162-1168. https://doi.org/10.1103/PhysRevC.3.1162