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 ( 3 2 , 3 2 ) resonance ( T π C.M.= 1.52 MeV) where they scale as A 2 3 . The measured total cross sections exhibit considerable broadening with respect to the π-nucleon resonance.

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