Measurement of exclusive rho 0 rho 0 production in two-photon collisions at high Q(2) at LEP
Physics Letters B 568,1-2 (2003) 11-22;
Exclusive rho(0)rho(0) production in two-photon collisions involving a single highly virtual photon is studied with data collected at LEP at centre-of-mass energies 89 GeV < roots < 209 GeV with a total integrated luminosity of 854.7 pb(-1). The cross section of the process gammagamma * --> rho(0)rho(0) is determined as a function of the photon virtuality, Q(2), and the two-photon centre-of-mass energy, Wgammagamma, in the kinematic region: 1.2 GeV2 < Q(2) < 30 GeV2 and 1.1 GeV < Wgammagamma < 3 GeV.
photon-photon collisions;; gamma-gamma-collisions;; l3 experiment;; reaction gamma-gamma->pi+pi-pi+pi;; vector-dominance;; 4-quark states;; q2qbar2 mesons;; cross-section;; threshold;; detector
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