Analysis of the pi+ pi- pi+ pi- and pi+ pi0 pi- pi0 final states in quasi-real two-photon collisions at LEP
Phys.Lett.B 638 (2006) 128-139, 2006.
CERN-LEP. Study of two photon production of (PI+ PI- PI+ PI-) and (PI+ PI0 PI+ PI0) and spin parity analysis of the (RHO0 RHO0) and (RHO+ RHO-) systems for centre of mass energies between 1 and 3 GeV. The data come from E+ E- interactions at centre of mass energies between 161 and 209 GeV with a total integrated luminosity of 697.7 pb-1.