Study of the process e(+)e(-)->pi(+)pi(-) in the energy region 400 <root s < 1000 MeV

The cross section of the process e(+)e(-) -> pi(+)pi(-) was measured in the spherical neutral detector experiment at the VEPP-2M collider in the energy region 400 < root s < 1000 MeV. This measurement was based on about 12.4 x 10(6) selected collinear events, which include 7.4 x 10(6) e(+)e(-) -> e(+)e(-), 4.5 x 10(6) e(+)e(-) -> pi(+)pi(-), and 0.5 x 10(6) e(+)e(-) -> mu(+)mu(-) selected events. The systematic uncertainty of cross section determination is 1.3%. The rho-meson parameters were determined as m(rho) = 774.9 +/- 0.4 +/- 0.5 MeV, Gamma(rho) = 146.5 +/- 0.8 +/- 1.5 MeV, and sigma(rho -> pi(+)pi(-)) = 1220 +/- 7 +/- 16 nb and the parameters of the G-parity suppressed decay omega -> pi(+)pi(-) as sigma(omega -> pi(+)pi(-)) = 29.9 +/- 1.4 +/- 1.0 nb and phi(rho omega) = 113.5 +/- 1.3 +/- 1.7 degrees. (c) 2005 Pleiades Publishing, Inc.