Elsevier

Nuclear Physics A

Volume 356, Issue 2, 23 March 1981, Pages 413-426
Nuclear Physics A

Isobar-hole description of the pion-nucleus single-charge-exchange reaction

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Abstract

The charge-exchange reaction in pion-nucleus scattering is analysed in the framework of the isobar-hole model. Calculations are performed for the 15N(π+, π0)15O reactions. The cross section proves very sensitive to the different medium corrections which account for Pauli, binding, true pion absorption and reflection effects.

A flat-angle integrated cross section of around σ = 0.4 mb is obtained in the resonance region once all these medium corrections are included.

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