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${{\mathit \eta}_{{{c}}}{(2S)}}$ WIDTH

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M059W

VALUE (MeV) CL% EVTS DOCUMENT ID TECN  COMMENT $\bf{ 11.8 \pm1.6}$ OUR AVERAGE $10.77$ $\pm1.62$ $\pm1.08$ 3.7k AAIJ 2023 AH LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}$( ${{\mathit K}_S^0}$ ${{\mathit K}}{{\mathit \pi}}$) $19.8$ $\pm3.9$ $\pm3.1$ 569 ABLIKIM 2022 Q BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}$3( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $9.9$ $\pm4.8$ $\pm2.9$ 57 ABLIKIM 2013 K BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ $16.9$ $\pm6.4$ $\pm4.8$ 127 1 ABLIKIM 2012 G BES3 ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit K}^{0}}{{\mathit K}}{{\mathit \pi}}$ , ${{\mathit K}}{{\mathit K}}{{\mathit \pi}^{0}}$ $13.4$ $\pm4.6$ $\pm3.2$ 624 2 DEL-AMO-SANCH.. 2011 M BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ $6.6$ ${}^{+8.4}_{-5.1}$ ${}^{+2.6}_{-0.9}$ 128 3 VINOKUROVA 2011 BELL ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}({{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$) $6.3$ $\pm12.4$ $\pm4.0$ 61 ASNER 2004 CLEO ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}^{\,'}}$ $\rightarrow$ ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ • • We do not use the following data for averages, fits, limits, etc. • • $\text{< 23}$ 90 98 4 AUBERT 2006 E BABR ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{\pm}}{{\mathit X}}_{{{\mathit c}} {{\overline{\mathit c}}}}$ $22$ $\pm14$ 121 AUBERT 2005 C BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit c}}{{\overline{\mathit c}}}$ $17.0$ $\pm8.3$ $\pm2.5$ 112 5 AUBERT 2004 D BABR ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \eta}_{{{c}}}{(2S)}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$ $\text{<55}$ 90 39 6 CHOI 2002 BELL ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit K}_{{{S}}}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ $\text{<8.0}$ 95 7 EDWARDS 1982 C CBAL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}$ X 1  From a simultaneous fit to ${{\mathit K}_S^0}$ ${{\mathit K}^{\pm}}{{\mathit \pi}^{\mp}}$ and ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{0}}$ decay modes. 2  Ignoring possible interference with continuum. 3  Accounts for interference with non-resonant continuum. 4  From the fit of the kaon momentum spectrum. Systematic errors not evaluated. 5  Superseded by DEL-AMO-SANCHEZ 2011M. 6  For a mass value of $3654$ $\pm6$ MeV. Superseded by VINOKUROVA 2011. 7  For a mass value of $3594$ $\pm5$ MeV

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