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${\mathit m}_{{{\mathit \chi}_{{{c1}}}{(3872)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$

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M176DM2

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT • • We do not use the following data for averages, fits, limits, etc. • • $185.598$ $\pm0.067$ $\pm0.068$ 15.6k 1 AAIJ 2020 AD LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $185.54$ $\pm0.06$ 19.8k 2 AAIJ 2020 S LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit X}}$ $187.4$ $\pm1.4$ 25 3 AUBERT 2005 R BABR ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ 1  Using ${{\mathit \chi}_{{{c1}}}{(3872)}}$ produced in inclusive ${{\mathit b}}$-hadron decays. Breit-Wigner parametrization. Superseded by the combined value in AAIJ 2020S. 2  Combining ${\mathit m}_{{{\mathit \chi}_{{{c1}}}{(3872)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$ = $185.49$ $\pm0.06$ $\pm0.03$ MeV from AAIJ 2020S and the measured mass difference from AAIJ 2020AD. Breit-Wigner parametrization. 3  Superseded by AUBERT 2006.

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