Study of Bk249, Am241, and Pa231 with proton transfer reactions

Phys. Rev. C 11, 561 – Published 1 February 1975
J. R. Erskine, G. Kyle, R. R. Chasman, and A. M. Friedman

Abstract

Proton single-particle states have been studied in the isotopes Bk249, Am241, and Pa231. The reaction (α, t) was utilized in the three studies. Additionally, the reaction (He3, d) was used in the study of levels in Bk249. Many new levels were observed and some could be interpreted in terms of single-particle orbitals. Also several assignments previously made on the basis of radioactive decay studies were confirmed by the orbital signatures seen in the proton transfer spectra. Single-particle energies are extracted from the experimental data. Deformations of the nuclear central potential are deduced for Bk249 and Am241. By use of the parameters of the central field for Bk249, the f72-f52 splitting is deduced for mass 250 at zero deformation and estimated for mass 300.

NUCLEAR REACTIONS Cm248(He3, d), Cm248, Pu240, Th230(α, t) E=29 MeV; measured E (excitation), σ; deduced orbitals, s.p. energies, deformations in Bk249, Am241, Pa231.

DOI: http://dx.doi.org/10.1103/PhysRevC.11.561

  • Received 26 August 1974
  • Published in the issue dated February 1975

© 1975 The American Physical Society

Authors & Affiliations

J. R. Erskine

  • University of Minnesota, Minneapolis, Minnesota 55455 and Argonne National Laboratory, Argonne, Illinois 60439

G. Kyle

  • University of Minnesota, Minneapolis, Minnesota 55455

R. R. Chasman and A. M. Friedman

  • Argonne National Laboratory, Argonne, Illinois 60439

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