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

Muneyuki Ishida·Toshihiko Komada·Shin Ishida·Taku Ishida·Kunio Takamatsu·Tsuneaki Tsuru
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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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Muneyuki Ishida, Toshihiko Komada, Shin Ishida, Taku Ishida, Kunio Takamatsu, Tsuneaki Tsuru. 2000-05-25. Effect of light sigma-meson Production in ppbar --> 3 pi0 at rest. https://doi.org/10.1143/ptp.104.203

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