Beauty production at the CERN proton-antiproton collider

UA1 Collaboration, R. Edgecock

Research output: Contribution to journalArticlepeer-review

113 Citations (Scopus)


We report evidence for beauty particle production through the observation of dimuon events from proton-antiproton collisions at energies of s=546 GeV and s=630 GeV at the CERN collider. Our data indicate that semi-leptonic decays of beauty particles are the dominant source of pairs of high-pT muons. The beauty flavour creation (gg or qq→bb) cross-section needed to explain the dimuon rate is σ{pp→bb+X; pbT>5 GeV/c, |η|<2.0}=(1.1±0.1±0.4) μb, which is in good agreement with QCD calculations. We also observe clear signals for γ→μ+μ- (hidden beauty) and high-pTJ/Ψ→μ+μ-, well above the backgraound of continuum muon pairs from the Drell-Yan mechanism.

Original languageEnglish
Pages (from-to)237-246
Number of pages10
JournalPhysics Letters B
Issue number2
Publication statusPublished - 5 Mar 1987
Externally publishedYes


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