Measurements of pp→μ⁺μ^-+X at √s=44 and 62 GeV are compared. The data are taken under identical conditions utilizing clean proton-proton collisions from the CERN intersecting storage rings and confirm scaling to 5%. The observed μ⁺μ^- yield is a factor of 1.6±{}0.2 larger than estimated from a simple parton model but is consistent with QCD. The pT dependence of the muon pairs agrees well with expectations from QCD.
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Antreasyan et al. (1982) studied this question.
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