Abstract

The role of pi - pi interaction in pi -N scattering is considered, particularly in the pion production process. The effects that result from the pi - pi interaction are discussed. A quantitative estimate of the pi - pi interaction strength is obtained by isolating the contribution of the one-pion exchange diagram from all others. This is accomplished by using the fact that this matrix element becomes infinite when the exchanged pion is real. (W.D.M.)

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