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arXiv · hep-ph/9907415

Zeros, Dips and Signs in pp and p$\rm\bf\bar p$ Elastic Amplitudes

Flavio Pereira·Erasmo Ferreira
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Abstract

The dips observed in the differential cross sections of elastic pp and p$\bar{\rm p}$ scattering are studied in terms of the locations of the zeros of the real and imaginary parts of the amplitude and of the sign of real part at large $|t|$. It is confirmed that the differences in shapes of the dips in the pp and p$\bar{\rm p}$ systems are determined by a change of sign of the real tail, which seems to be determined by perturbative QCD contributions.

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Flavio Pereira, Erasmo Ferreira. 1999-07-19. Zeros, Dips and Signs in pp and p$\rm\bf\bar p$ Elastic Amplitudes. https://doi.org/10.1103/physrevd.61.077507

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