Elsevier

Physics Letters B

Volume 47, Issue 3, 12 November 1973, Pages 234-236
Physics Letters B

Pion-nuclear total cross sections near the 32, sol32 resonance

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Abstract

The π+ total nuclear cross sections for 9Be, 12C, 16O, and 27Al have been measured in the energy range 114 to 210 MeV, while π data have been taken at 153 MeV. In the center-of-mass coordinate system the π-nucleus total cross sections reach their maximum value near the π-nucleon (32, 32) resonance (TπC.M.= 1.52 MeV) where they scale as A23. The measured total cross sections exhibit considerable broadening with respect to the π-nucleon resonance.

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SREL is supported by the National Aeronautics and Space Administration, the Commonwealth of Virginia, and the National Science Foundation.

Work supported in part by the U.S. Atomic Energy Commission.

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