Four-momentum dependence of inelastic scattering of cosmic ray muons on nucleons

Data taken by a combination of a horizontal solid iron muon spectrograph and an interaction calorimeter have been analysed with respect to the process of inelasticμN-scattering. The muon momentum range covered by the spectrograph extended from 7 GeV/c≦p _μ ≦1000 GeV/c. Energy transfers to hadrons between 0.3 GeV≦v≦10 GeV were recorded. The results at low four-momentum transfers are consistent with precocious scaling.