Study of Pion-Absorption Mechanisms in He4 and Other Nuclei

H. E. Jackson, S. L. Tabor, K. E. Rehm, J. P. Schiffer, R. E. Segel, L. L. Rutledge, Jr., and M. A. Yates
Phys. Rev. Lett. 39, 1601 – Published 19 December 1977
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Abstract

The spectrum and yield of protons produced by 60-, 100-, and 200-MeV π+ and π beams on targets of He4, C12, Ni62, and Ta181 have been measured at 45° and 90°. A distinct high-energy component is seen in the protons from He4, which is consistent with a two-body absorption mechanism. Its cross section at 220 MeV is somewhat larger than calculated from the π+ + D process. Possible evidence is also seen for multinucleon absorption modes. The data on heavier nuclei are consistent with earlier experiments.

  • Received 14 October 1977

DOI:https://doi.org/10.1103/PhysRevLett.39.1601

©1977 American Physical Society

Authors & Affiliations

H. E. Jackson and S. L. Tabor*

  • Argonne National Laboratory, Argonne, Illinois 60439

K. E. Rehm and J. P. Schiffer

  • Argonne National Laboratory and University of Chicago, Chicago, Illinois 60637

R. E. Segel and L. L. Rutledge, Jr.

  • Northwestern University, Evanston, Illinois 60201

M. A. Yates

  • Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545

  • *Present address: Department of Physics and Astronomy, University of Maryland, College Park, Md. 20742.
  • Max Kade Fellow on leave from Technische Universität, München, West Germany.
  • Present address: Applied Mathematics Division, Argonne National Laboratory, Argonne, Ill. 60439.

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Issue

Vol. 39, Iss. 25 — 19 December 1977

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