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The differential cross section for production of charged hadrons with hightransverse momenta in scattering of 160\,GeV/$c$ muons off nucleons at lowphoton virtualities has been measured at the COMPASS experiment at CERN. Theresults, which cover transverse momenta from 1.1\,GeV/$c$ to 3.6\,GeV/$c$, arecompared to a perturbative Quantum Chromodynamics (pQCD) calculation, in orderto evaluate the applicability of pQCD to this process in the kinematic domainof the experiment. The shape of the calculated differential cross section as afunction of transverse momentum is found to be in good agreement with theexperimental data, but the absolute scale is underestimated by next-to-leadingorder (NLO) pQCD. The inclusion of all-order resummation of large logarithmicthreshold corrections reduces the discrepancy from a factor of three to four toa factor of two. The dependence of the cross section on the pseudo-rapidity andon virtual photon energy fraction is investigated. Finally the dependence onthe charge of the hadrons is discussed.

Measurement of the Cross Section for High-p_T Hadron Production in Scattering of 160 GeV/c Muons off Nucleons