Abstract
In the framework of the Glauber model, taking into account the K′-factor, we analyse the Drell–Yan dimuon production cross sections for an absolute measurement of continuum dimuon (Drell–Yan) cross section in 800 GeV/c pp collisions. The calculated results of the leading order agree only poorly with the new experimental data, but there is a general agreement between the next-to-leading-order QCD correction results and the experimental data. It is shown that the QCD corrections to the Drell–Yan process cannot be omitted. Then, by means of the nuclear parton distribution obtained from the DGLAP equation, taking into account the energy loss of the beam proton through the nucleus, we analyse the QCD corrections to the measured Drell–Yan production cross sections for an 800 GeV proton beam incident on Be, Fe and W nuclear targets in the Glauber model. It is shown that the theoretical results are in good agreement with the FNAL E866. Finally, we compare the calculated results from the DGLAP equation with those from the latest nuclear effect models.
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