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${{\mathit \chi}_{{{c1}}}{(4274)}}$ MASS

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M233M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 4286 {}^{+8}_{-9}}$ OUR AVERAGE  Error includes scale factor of 1.7. $4294$ $\pm4$ ${}^{+3}_{-6}$ 24k 1 AAIJ 2021 E LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ $4274.4$ ${}^{+8.4}_{-6.7}$ $\pm1.9$ 22 2 AALTONEN 2017 CDF ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ • • We do not use the following data for averages, fits, limits, etc. • • $4273.3$ $\pm8.3$ ${}^{+17.2}_{-3.6}$ 4289 3, 4 AAIJ 2017 C LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ 1  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 18 $\sigma $. 2  From a fit to the invariant mass spectrum with a significance of 3.1 $\sigma $. 3  From an amplitude analysis of the decay ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}{{\mathit K}^{+}}$ with a significance of 6.0 $\sigma $. 4  Superseded by AAIJ 2021E.

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