Beauty production at the CERN proton-antiproton collider
作者： C Albajar , MG Albrow , OC Allkofer , G Arnison , A Astbury
DOI: 10.1016/0370-2693(87)90287-5
关键词:
摘要: We report evidence for beauty particle production through the observation of dimuon events from proton-antiproton collisions at energies √s=546 GeV and √s=630 CERN collider. Our data indicate that semi-leptonic decays particles are dominant source pairs high-pT muons. The flavour creation (gg or q¯q→b¯b) cross-section needed to explain rate is σ{p¯p→b¯b+X, pbT5 GeV/c, |η|<2.0}=(1.1±0.1±0.4) μb, which in good agreement with QCD calculations. also observe clear signals ϒ→μ+μ− (hidden beauty) J/ψ→μ+μ−, well above backgraound continuum muon Drell-Yan mechanism.
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