Inclusive production of the rho0 and ω mesons by 70 GeV/c protons on the Be nculei

The results on the experimental investigation of the rho0 and ω meson contributions to the cross section of the μ+μ- pairs inclusively produced by 70 GeV/c protons on the nuclei are presented for the Feynman variable x > 0.5 and transverse momentum psub(t)sup(2) < 1.5 GeV/c2. Differential distribution over x and psub(t)sup(2) pairs produced from rho0 and ω meson decays is approximated well with the dependences xdσ/dx approximately (1-x)sup(n) and dσ/dpsub(t)sup(2) exp(-Bpsub(t)sup(2)) with the parameters n=2.9 and B=3.15 (GeV/c)2. The psub(t)sup(2) and x dependences for the ratio of rho0 and ω contributions to the μ+μ- pair effective masses point to the fact that some noticeable fraction of rho0 mesons is produced in the investigated range from the decays of higher resonance