Inclusive heavy flavour production in gamma gamma collisions has been studied with the L3 detector at the LEP collider. Preliminary results on charm and beauty production at square root (s)=189 GeV are presented. Hadronic final states containing charm particles were identified either by detecting electrons or muons from their semi- leptonic decays or by reconstruction of charged D* meson decays. The cross section for beauty production in gamma gamma collisions has been measured for the first time. Even including real and virtual gluon emission (NLO QCD) the direct process gamma gamma to cc, bb is insufficient to describe charm and beauty production in gamma gamma collisions. The cross section values and event distributions require resolved ...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The results on the production of jets, charged hadrons and K/sub S //sup 0/ mesons in the collisions...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
Open charm production in gamma-gamma collisions is studied with data collected at e+e- centre-of-mas...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in γγ collisions σ(e + e − →e + e − c c ̄ X) is measured at LE...
The cross section of charm production in γγ collisions σ(e + e − →e + e − c c ̄ X) is measured at LE...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The results on the production of jets, charged hadrons and K/sub S //sup 0/ mesons in the collisions...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
Open charm production in gamma-gamma collisions is studied with data collected at e+e- centre-of-mas...
The cross section of charm production in gamma gamma collisions sigma(e(+)e(-) --> e(+)e(-)c (c) ove...
The cross section of charm production in γγ collisions σ(e + e − →e + e − c c ̄ X) is measured at LE...
The cross section of charm production in γγ collisions σ(e + e − →e + e − c c ̄ X) is measured at LE...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...
The production of c and b quarks in gamma-gamma collisions is studied with the L3 detector at LEP wi...