1999/05/17 by Kunio Takamatsu, K. Takamatsu, Takamatsu, Kunio
Chemistry · Engineering · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle Accelerators and Free-Electron Lasers #Particle accelerators and beam dynamics #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9905361
7 pages, 3 eps figure, uses elsart.sty proceedings of Int. Conf. e+e-collisions from phi to J/psi, Novosibirsk, March 1-5, 1999
arxiv created 1999/05/17 · openalex publication_date 1999/05/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The amplitude analysis has been performed on the pi0 pi0 final state obtained in the pi- p charge exchange process. The pi0 pi0 scattering amplitudes have been obtained for the S and D waves by the Chew-Low extrapolation and the partial wave analysis. Breit Wigner parameters have been obtained for f0(1370) and f2(1270). I=0 S wave pi0 pi0 scattering phase shift has been obtained below K Kbar threshold. They agree well with the pi+ pi- standard phase shift data below 650GeV and deviate by about 10 degrees from the standard data above 650MeV. They show a different behavior from those of Cason and others. The pi0 pi0 phase shift data have been analyzed by the IA method. Resonance parameters have been obtained to be msigma =588 pm 12MeV and Gammasigma =281 pm 25MeV with rc=2.76 pm 0.15GeV-1. They are excellently in agreement with those obtained in the reanlysis on the pi+ pi- phase shift data.