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arXiv · hep-ph/9910248

Effect of sigma(600)-Production in pp_bar to 3pi0 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 KK_bar-threshold and at 1.5 GeV in pp_bar(at rest) to 3pi0 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. 1999-10-06. Effect of sigma(600)-Production in pp_bar to 3pi0 at rest. https://doi.org/10.1016/s0375-9474(00)00253-0

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