CUMULATIVE PROTON PRODUCTION ACCOMPANIED BY FAST RHO-0 MESONS IN PI-AINTERACTIONS AT 40GEV C/

The SIGMA-AYAKS setup was used to study the production of cumulative p rotons p(B), having kinetic energies in the range 0.1 < T(B) < 0.3 GeV and accompanied by fast rho0 mesons with the Feynman variable x(F) > 0.6 and squared transverse momentum p(t)2 < 1 (Ge V/v)2, in pion-nucle us interactions at the incident pi--meson momentum p(BM) = 40 GeV/c. I n pi-Be interactions, the T(B)-dependence of the invariant cross secti on of cumulative. proton production is measured. The polarization prop erties and distributions of fast rho0 mesons over x(F) and p(l)2 are a lso studied. It is found that characteristics of rho0 mesons in the di stinguished channel of the reaction are similar to those of rho0 meson s produced in the beam fragmentation range of pi-N interactions.