Recoil and threshold corrections in short-distance cross sections - art. no. 114018

We identify and resum corrections associated with the kinematic recoil of t he hard scattering against soft-gluon emission in single-particle inclusive cross sections. The method avoids double counting and conserves the flow o f partonic energy. It reproduces threshold resummation for high-p(T) single -particle cross sections, when recoil is neglected, and Q(T) resummation at low Q(T), when higher-order threshold logarithms are suppressed. We exhibi t explicit resummed cross sections, accurate to next-to-leading logarithm, for electroweak annihilation and prompt photon inclusive cross sections.