Possible example of subhadronic scattering

The invariant cross sections of the inclusive process P+P..-->..P+P+X at 70 GeV, in which the protons with symmetric pulses fly apart at angles close to 90/sup 0/ in the c.m.s., are measured. The obtained results are in agreement with the assumption that a subhadronic, quasi-elastic scattering of a ''subproton'' by a ''subproton'' (a system comprised of three valence quarks) exists.