Results for higher-order threshold enhancements in high-$E_T$ jet production in hadron-hadron collisions are presented. Expressions are given for the next-to-next-to-leading order (NNLO) threshold corrections to the single-jet inclusive cross section at next-to-leading logarithmic (NLL) accuracy. The corrections are found to be small for the specific choice of $E_T/2\mathrm{}$ for the factorization and renormalization scales, and the corrected cross section shows a substantial reduction of the scale dependence. A comparison to experimental results from the Fermilab Tevatron is presented.

• Received 25 July 2000

DOI:https://doi.org/10.1103/PhysRevD.63.054019