The phase of the sigma -> pi-pi amplitude in J/Psi -> omega-pi-pi

Abstract

The phase variation of the sigma -> pi-pi amplitude is accurately determined as a function of mass from BES II data for J/Psi -> omega-pi-pi. The determination arises from interference with the strong b1(1235)-pi amplitude. The observed phase variation agrees within errors with that in pi-pi elastic scattering.

10 pages, 4 figures, Euro. Phys. J C (in press)

Cited by in corpus (11)

• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• On the size of the sigma meson and its nature
• A Study in Depth of f0(1370)
• The mass of the sigma pole
• Dalitz plot analysis of the D+ to K-pi+pi+ decay in the FOCUS experiment
• Reconclining phi radiative decays with other data for a0(980), fo(980), pi-pi -> KK and pi-pi -> eta-eta
• The Kappa in J/Psi -> Kpplus-piminus-Kminus-piplus
• Scalars in the hadron world: the Higgs sector of the strong interaction
• Rescattering effects and the $\sigma$ pole in hadronic decays
• S-wave and P-wave pion-pion and kaon-pion contributions to three-body decay processes in the Resonance-Spectrum Expansion
• Experimental disagreements with Extended Unitarity