Measurements of the Cross Sections for Open Charm and Beauty Production in gamma gamma Collisions at root(s)=189-202 GeV

Abstract

The production of c and b quarks in gamma-gamma 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 sigma(e+e- -> e+e- c c~ X) and sigma(e+e- -> e+e- b b~ X) are measured and compared to next-to-leading order perturbative QCD calculations. The cross section of b production is measured in gamma-gamma collisions for the first time. It is in excess of the QCD prediction by a factor of three.

References in corpus (1)

• Measurement of Inclusive $D^{\ast \pm }$ Production in Two-Photon Collisions at LEP

Cited by in corpus (34)

• Is There a Significant Excess in Bottom Hadroproduction at the Tevatron?
• Theory of hard photoproduction
• Measurement of F_2^ccbar and F_2^bbbar at High Q^2 using the H1 Vertex Detector at HERA
• Low-Energy Supersymmetry and the Tevatron Bottom-Quark Cross Section
• Evidence for Colour-Octet Mechanism from CERN LEP2 gamma gamma -> J/psi + X Data
• Measurement of Beauty Production at HERA Using Events with Muons and Jets
• Measurement of beauty production in deep inelastic scattering at HERA
• Study of Inclusive J/psi Production in Two-Photon Collisions at LEP II with the DELPHI Detector
• Beauty photoproduction measured using decays into muons in dijet events in ep collisions at $\sqrt{s}$=318 GeV
• A New 5-Flavour LO Analysis and Parametrization of Parton Distributions in the Real Photon
• Measurement of beauty production in DIS and F_2^bbbar extraction at ZEUS
• Measurement of open beauty production at HERA in the D* muon final state
• Measurement of beauty production from dimuon events at HERA
• Measurement of beauty photoproduction using decays into muons in dijet events at HERA
• Measurement of the Charm Production Cross Section in gamma gamma Collisions at LEP
• Measurement of the Cross Section for Open-Beauty Production in Photon-Photon Collisions at LEP
• Heavy quark and quarkonium production at CERN LEP2: k_T-factorization versus data
• Beauty photoproduction at HERA: kt-factorization versus experimental data
• High Energy Photoproduction
• Diffractive photoproduction of opposite-charge pseudoscalar meson pairs at high energies
• Inclusive D* Production in Two-Photon Collisions at LEP
• High Energy Photon-Photon Collisions at a Linear Collider
• Deep inelastic beauty production at HERA in the kt-factorization approach
• Heavy Flavour Physics at HERA - a Survey
• Renormalization and factorization scale analysis of $\bar{b}b$ production in antiproton-proton collisions
• QCD at high energy
• Open Beauty Production
• Towards understanding $b\bar{b}$ production in $\gamma \gamma$ collisions
• First measurements of beauty quark production at {\surd}s = 7 TeV with the CMS experiment
• Definition and Calculation of Bottom Quark Cross-Sections in Deep-inelastic Scattering at HERA and Determination of their Uncertainties
• The implications of final L3 measurement of $σ_{tot}(γγ\to b\bar{b}
• A Comprehensive New Detector for Detailed Study of the Quark Gluon Plasma, Initial Conditions and Spin Physics at RHIC II
• QCD at High Energy
• Small-x QCD Effects in Particle Collisions at High Energies