Hadron production at transverse momenta from 0.5 to 2.2 GeV/c in proton-proton collisions at 70 GeV

Measured are cross sections of πsup(+-), Ksup(+-), p and anti p production in pp-collisions at 70 GeV in the range of transverse momenta 0.48-2.21 GeV/c and the angle Qsub(scm)=90 deg. The calculations are carried out on a focusing two-arm spectrometer, the device equipment is on-line system. Accounting on spectrometer acceptance, absorption, decay and particle ionization losses is calculated by the Monte-Karlo method. Determined and graphically and in tables presented are invariant cross section of the observed particle production and yield relation of PI+/PI-, K+/K-, K+/PI+, K-/PI-, anti p/PI- particles in pp-collisions at different values of transverse momenta. The experimental data are compared with the results, obtained at higher or lower proton energy as well as with calculations by quantum-chromodynamic parton model, which describes the experimental results qualitatively correctly. The best agreement is obtained for PI+/PI- and K+/PI+ yield relations