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English

Measurements of the cross sections for open charm and beauty production in γγ collisions at √s=189–202 GeV

ContributorsL3 Collaboration
Published inPhysics letters. B, vol. 503, no. 1-2, p. 10-20
Publication date2001
Abstract

The production of c and b quarks γγ collisions is studied with the L3 detector at LEP with 410 pb−1 of data, collected at centre-of-mass energies from 189 GeV to 202 GeV. Hadronic final states containing c and b quarks are identified by detecting electrons or muons from their semileptonic decays. The cross sections σ (e+e-→e+e-ccX) and σ (e+e-→e+e-bbX) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in γγ collisions for the first time. It is in excess of the QCD prediction by a factor of three

Citation (ISO format)
L3 Collaboration. Measurements of the cross sections for open charm and beauty production in γγ collisions at √s=189–202 GeV. In: Physics letters. B, 2001, vol. 503, n° 1-2, p. 10–20. doi: 10.1016/S0370-2693(01)00134-4
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ISSN of the journal0370-2693
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