Inclusive Lambda production in two-photon collisions at LEP
Physics Letters B 586,3-4 (2004) 140-150;
The reactions e(+)e(-) --> e(+)e(-) LambdaX and e(+)e(-) --> e(+)e(-) LambdaX are studied using data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 209 GeV. Inclusive differential cross sections are measured as a function of the lambda transverse momentum, p(t), and pseudo-rapidity, eta, in the ranges 0.4 GeV < p(t) < 2.5 GeV and \eta\ < 1.2. The data are compared to Monte Carlo predictions. The differential cross section as a function of pt is well described by an exponential of the form A exp(-p(t) /). (C) 2004 Published by Elsevier B.V.
dual parton model;; l3 experiment;; pair production;; final-states;; detector;; energies;; trigger;; photon;; photoproduction;; order
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