Measurement Of E(+)E(-) -> Pi(+)Pi(-) Cross-Section With Cmd-2 Around Rho-Meson

The cross-section of the process e(+)e(-) --> pi(+)pi(-) has been measured using about 114000 events collected by the CMD-2 detector at the VEPP-2M e(+)e(-) collider in the center-of-mass energy range from 0.61 to 0.96 GeV. Results of the pion form factor determination with a 0.6% systematic uncertainty are presented. The following values of the rho- and omega-meson parameters were found: Mrho = (776.09 +/- 0.81) MeV, Gamma(rho) = (144.46 +/- 1.55) MeV, Gamma(rho --> e(+)e(-)) = (6.86 +/- 0.12) keV, Br(omega --> pi(+)pi(-)) = (1.33 +/- 0.25)%. Implications for the hadronic contribution to the muon anomalous magnetic moment are discussed. (C) 2002 Elsevier Science B.V. All rights reserved.