Elastic Scattering of 50-MeV π+ from C12

J. F. Amann, P. D. Barnes, M. Doss, S. A. Dytman, R. A. Eisenstein, and A. C. Thompson
Phys. Rev. Lett. 35, 426 – Published 18 August 1975
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Abstract

Results for the elastic scattering of 50-MeV π+ on C12 are presented. Contrary to experience at energies above 100 MeV, simple optical models (with parameters derived from πN phase shifts) give poor fits to the data. Forcing good fits yields potentials that are pion producing or in violation of unitarity. We conclude that improved optical potentials will be required to describe low-energy data.

  • Received 9 June 1975

DOI:https://doi.org/10.1103/PhysRevLett.35.426

©1975 American Physical Society

Authors & Affiliations

J. F. Amann, P. D. Barnes, M. Doss, S. A. Dytman, R. A. Eisenstein*, and A. C. Thompson

  • Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213

  • *On leave at Clinton P. Anderson Meson Physics Facility, Los Alamos, N. M. 87545.
  • Present address: Lawrence Berkeley Laboratory, Berkeley, Calif. 94720.

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Vol. 35, Iss. 7 — 18 August 1975

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