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${{\mathit T}_{{{c {{\overline{\mathit c}}}}}}{(4055)}^{+}}$ MASS

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M223M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $4054$ $\pm3$ $\pm1$ 1 WANG 2015 A BELL 10.58 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ • • We do not use the following data for averages, fits, limits, etc. • • $4039.3$ $\pm6.0$ 2 ABLIKIM 2018 K BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \psi}{(2S)}}$ $4032.1$ $\pm2.4$ 3 ABLIKIM 2017 V BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ 1  Statistical significance of 3.5 ${{\mathit \sigma}}$. 2  Statistical error only, with significance of 5.9 $\sigma $ (from a fit with a 19$\%$ CL). Identified as the same structure observed in ABLIKIM 2017V in ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ decays. 3  Statistical error only, with significance of 9.2 $\sigma $. From an unbinned maximum likelihood fit of the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ Dalitz plot from data collected at $\sqrt {s }$ = 4.416 GeV for a $\mathit J{}^{C} = 1{}^{+}$ state. The fit does not match the detailed structure of the data, having a C.L. of only 8$\%$.

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