It is shown that if in a calculation of high-transverse-momentum meson production in hadron-hadron collisions one includes not only the scale-breaking effects that might be expected from asymptotically free theories but also the effects due to the transverse momentum of quarks in hadrons, then the results are not inconsistent with the single-particle cross-section data.

• Received 19 December 1977

DOI:https://doi.org/10.1103/PhysRevLett.40.997