Precocious Scaling in Antiproton - Proton Scattering at Low Energies

Abstract

The scaling of the diffraction peak in antiproton--proton scattering has been investigated from near threshold up to $3GeV/c$ laboratory momenta.It was shown that the scaling of the differential cross sections are evidentiated with a surprising accuracy not only at high energies,but also at very low ones(e.q. $p_{LAB}=0.1--0.5GeV/c$),beyond the resonance and exotic resonance regions.This precociuos scaling strongly suggests that the s -- channel helicity conservation (SCHC) can be a peculiar property that should be tested in antiproton -proton interaction not only at high energies but also at low energy even below $p_{LAB}=1GeV/c$.

Comments: 17 pages,LATEX, preprint ICTP - 1993