Partial wave analysis of J/ψ → γ(π+π-π+π-)

BES data on J/psi --> gamma(pi(+) pi(-) pi(+) pi(-)) have been analyzed into partial waves. We fit with resonances having J(PC) = 2(++) at 1275 MeV, 0(++) at 1500 MeV, 2(++) at 1565 MeV, 0(++) at 1740 MeV, 2(++) at 1940 MeV and 0(++) at 2104 MeV, plus a broad 0(-) component. The 0(++) resonances decay dominantly to sigma sigma, while 2(++) resonances in the high mass region decay mainly to f(2)(1270)sigma and sigma sigma; 2(++) resonances from the low mass region decay dominantly to rho rho. (C) 2000 Published by Elsevier Science B.V. All rights reserved.