Large transverse momentum jet production and DIS distributions of the proton

We have calculated the single jet inclusive cross section as measured at Fermilab in next-to-leading order QCD using recent parton distributions of the CTEQ Collaboration. We studied the scheme dependence of the jet cross section by employing the <(MS)over bar> and DIS factorization schemes consistently. For E(T) > 200 GeV, we find that the cross section in the DIS scheme is larger than in the <(MS)over bar> scheme yielding a satisfactory description of the CDF data over the whole E(T) range in the DIS scheme.