THE EFFECT OF THE 3 PI RESONANCE ON THE 2PI RESONANCE
Abstract:
It is shown that the 4pi intermediate state in pi-pi scattering plays an important role in determining the position and perhaps even the existence of the pi-pi resonance. This large effect occurs by virtue of the pi resonance. Quantitative estimates are given. The effect of this result on the nucleon form factors is briefly discussed and a simple model for these functions is proposed. The possibility of higher energy pion resonances is also considered. Author
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