Title: Measurement of Beauty Production in Two-Photon Collisions at LEP


The production of b quarks in gamma-gamma collisions
has been studied with the L3 detector at LEP. The data sample 
used corresponds to a total integrated luminosity of 410 pb-1
collected at the centre-of-mass energies from 189 GeV to 202 GeV. 
Hadronic final
states containing beauty particles are identified by detecting electrons
or muons from their semi-leptonic decays. The cross sections 
(e+e- --> e+e- b bar(b) X) are compared to
perturbative next-to-leading order QCD calculations. The cross
section of beauty production 
has been measured in gamma-gamma  collisions for the first time.


 Parallel sessions: 1, 2, 3, 7 
 Plenary sessions: 3, 4, 11, 12