Observed Properties of Σ-particle

  • Kunio Takamatsu, Tsuneaki Tsuru
  • Published 1999


Recently we obtained the evidence for the existence of σ(600) meson, which had been sought but missing for a long time, by reanalyzing the I = 0 S-wave ππ scattering phase shift. The σ-existence was also suggested through the analyses of ππ production processes, pp central collision pp → ppππ and J/ψ → ωππ decay. The observed properties through these works… (More)


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