$0^{++}$ Resonances Observed at BES
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In last 10 years, $0^{++}$ resonances have been observed and studied at BES in many processes, such as $J/ψ\toγπ^+π^-π^+π^-$, $γπ^+π^-$, $γπ^0π^0$, $γK^+K^-$, $γK_SK_S$, $γωϕ$, $ωπ^+π^-$, $ωK^+K^-$, $ϕπ^+π^-$, $ϕK^+K^-$, $ψ(2S)\to J/ψπ^+π^-$, $χ_{c0}\toπ^+π^-K^+K^-$, $π^+π^-π^+π^-$ etc.. The results on $0^{++}$ resonances observed at BES are reviewed.
Plenary talk at SCADRON70, Lisbon, Feb. 2008
Plenary talk at SCADRON70, Lisbon, Feb. 2008