28- and 34-MeV Li6 and Li7 elastic scattering on nuclei with 40A91

R. I. Cutler, M. J. Nadworny, and K. W. Kemper
Phys. Rev. C 15, 1318 – Published 1 April 1977; Erratum Phys. Rev. C 16, 1692 (1977)
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Abstract

Li6 and Li7 elastic scattering were measured at 28 and 34 MeV on Ca40 and Ca48 to σσR<103. An anomalous back angle enhancement was seen for Li6 + Ca40. No set of optical model parameters tried was able to fit the back angle Li6 + Ca40 data. Optical model parameters which exhibited a continuous Igo ambiguity but no discrete ambiguities were obtained for the above reactions and for other Li elastic scattering on Ni62, Cu63, Zn64, Zn68, Zr90, and Zr91. For a given value of the diffuseness, all parameter sets related by the Igo ambiguity gave completely identical fits to data. The value of the diffuseness which yielded acceptable fits was limited to a narrow range. It was found that the optical model parameters are extremely sensitive to the absolute normalization of the data. An empirical formula for the optical model parameters as a function of N and Z of the target nucleus was obtained for both Li6 and Li7 elastic scattering on these targets.

NUCLEAR REACTIONS Ca40(Li6, Li6), Ca40(Li7, Li7), Ca48(Li6, Li6), Ca48(Li7, Li7); E=28 and 34 MeV; measured σ(θ), θlab=10165°; deduced optical model parameters. Deduced systematic optical model parameters Li+Ca40, Ca48, Cu63, Zn64, Zn68, Zr90, Zr91.

  • Received 23 November 1976

DOI:https://doi.org/10.1103/PhysRevC.15.1318

©1977 American Physical Society

Erratum

Erratum: 28- and 34-MeV Li6 and Li7 elastic scattering on nuclei with 40A91

R. I. Cutler, M. J. Nadworny, and K. W. Kemper
Phys. Rev. C 16, 1692 (1977)

Authors & Affiliations

R. I. Cutler, M. J. Nadworny*, and K. W. Kemper

  • Physics Department, The Florida State University, Tallahassee, Florida 32306

  • *Present address: Department of Mathematics, Cairo High School, Cairo, Georgia.

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Vol. 15, Iss. 4 — April 1977

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