Measurement of exclusive rho+ rho- production in high-Q**2 two-photon collisions at LEP

The L3 collaboration
Achard, P. , Adriani, O. , Aguilar-Benitez, M. , Alcaraz, J. , Alemanni, G. , Allaby, J. , Aloisio, A. , Alviggi, M.G. , Anderhub, H. , Andreev, Valery P.
Phys.Lett.B 597 (2004) 26-38, 2004.

Abstract (data abstract)
CERN-LEP. Measurement of the cross sections for exclusive RHO+ RHO- production in two photon collisions resulting from E+ E- interactions at c.m. energies around the Z-pole (89-93 GeV) and at higher energies (161 to 209 GeV). The data come from a sample with luminosity 148.7 pb-1 around the Z-pole and 706.0 pb-1 at the higher energies. The production cross section is determined as a function of Q**2 and W.

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