S-wave π-π scattering phase shifts
Published Web Locationhttps://doi.org/10.1103/PhysRevD.4.265
Using an absorptive one-pion exchange mechanism for the reaction π-p→π+π-n, a fit is made to experimental data at 4 GeVc in order to extract the π-π scattering phase shifts. The analysis was carried out up to D waves in the π-π amplitude. The best results indicate a very broad I=0 S-wave resonance with MR=820 MeV and Γ=600 MeV. © 1971 The American Physical Society.