Decay phi->pi+pi-
/ Authors
/ Abstract
The process ee → ππ has been studied with the SND detector at VEPP-2M ee collider in the vicinity of φ(1020) resonance. From the analysis of the energy dependence of measured cross section the branching ratio B(φ→ ππ) = (7.1±1.1±0.9) ·10 and the phase ψπ = −(34±4±3) ◦ of interference with the non-resonant ππ production amplitude were obtained. PACS: 13.25.-k; 13.65.+i; 14.40.-n