Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest
Muneyuki Ishida, Toshihiko Komada, Shin Ishida, Taku Ishida, Kunio Takamatsu, Tsuneaki Tsuru
Abstract
The pi0 pi0 mass spectra and angular distributions around KKbar -threshold and at 1.5 GeV in ppbar (at rest) --> 3 pi0 in the Crystal Barrel experiment are reanalyzed by applying the new method, which is consistent with unitarity of S-matrix and expressed directly by resonance parameters. The effects of light sigma-meson production are clearly seen to improve the fit with sigma, in comparing with the fit without sigma.
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