#### ${\boldsymbol m}_{{{\boldsymbol \psi}_{{2}}{(3823)}}}–{\boldsymbol m}_{{{\boldsymbol \psi}{(2S)}}}$

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$137.98$ $\pm0.53$ $\pm0.14$ 137 1
 2020 S
LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit K}^{+}}$
 1 AAIJ 2020S also reports ${\mathit m}_{{{\mathit \chi}_{{c1}}{(3872)}}}–{\mathit m}_{{{\mathit \psi}_{{2}}{(3823)}}}$ = $47.50$ $\pm0.53$ $\pm0.13$ MeV.
References:
 AAIJ 2020S
JHEP 2008 123 Study of the $\psi_2(3823)$ and $\chi_{c1}(3872)$ states in $B^+ \rightarrow \left( J\psi\pi^+\pi^-\right)K^+$ decays