Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest

Ishida, Muneyuki; Komada, Toshihiko; Ishida, Shin; Ishida, Taku; Takamatsu, Kunio; Tsuru, Tsuneaki

Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest

Authors

Description

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.
8 pages, 1 Postscript figure, uses ptptex.sty