Hadron and jet production at CERN collider and ISR energies

Perturbative QCD is applied to large-$p_T$ production of hadrons, one jet, and two jets at CERN collider ($\sqrt{s}=540\mathrm{}$ GeV) and CERN ISR ($\sqrt{s}=63\mathrm{}$ GeV) energies. Two sets of gluon and other parton distributions determined from deep-inelastic scattering are used, and the results are compared. $K$ factors (order-${{\alpha }_s}^3$ perturbative corrections) are approximately taken into account. On the whole, experimental data are well accounted for.