Regge Poles and Resonances
Just before this discussion of Regge poles and resonances was prepared, we received information that at Brookhaven it was found that the diffraction peaks in π-p and K-p scattering do not shrink with energy, while in the case of p-p scattering the peak is much smaller than heretofore believed.1 The logarithmic shrinking of the diffraction peak2 was a unique prediction of the Regge poles hypothesis for high-energy scattering. Since the experimental data are not yet confirmed, we shall proceed in the usual way and try to understand the possible reasons for the diffraction peak not to shrink. Since the title of this paper refers to resonances, I shall not go into the details of the analytic properties of the functions involved.
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