High-Energy Elastic Scattering at Small Momentum Transfers

概要

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Experimental data on high-energy p-p, p^^--p, π^±-p and K^±-p elastic scatterings for small momentum transfers are analysed under the assumptions that the spin effect is negligible at high energies and that the imaginary part of the scattering amplitude predominates over the real one for low momentum transfers. Four parameters, all of which have definite physical meanings, are introduced and determined numerically from experimentally available quantities. It is found that protons are more transparent for a pion or a kaon than for a proton. The transparency increases with increasing energy independently of the shrinkage or nonshrinkage of the diffraction peak. It appears that there exists a non-negligible amount of contribution from the real part of the scattering amplitude to the elastic cross section except for p^^--p scattering, which is explainable by a simple model with no real amplitude.
理論物理学刊行会の論文
1966-06-25