Deep inelastic scattering cross sections have been measured with the CERN SPS muon beam at incident energies of 120 and 200 GeV. Approximately 100 000 events at each energy are used to obtain the structure function F 2( x, Q 2) in the kinematic region 0.3< x<0.7 and 25 GeV 2 < Q 2<200 GeV 2.
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