Li, L (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
By analyzing the data sets of 17.3, 6.5 and 1.0 pb(-1) taken, respectively, at root s = 3.773, 3.650 and 3.6648 GeV with the BES-II detector at the BEPC collider, we measure the observed cross sections for e(+)e(-) -> pi(+)pi(-)pi(0)pi(0), K+K-pi(0)pi(0), 2(pi(+)pi(-)pi(0)). K+K-pi(+)pi(-)pi(0)pi(0) and 3(pi(+)pi(-))pi(0)pi(0) at the three energy points. Based on these cross sections we set the tipper limits oil the observed cross sections and tile branching fractions for psi(3770) decay into these final states at 90% C.L. (c) 2008 Elsevier B.V. All rights reserved.