pdgLive Home   >   ${\mathit {\mathit c}}{\mathit {\overline{\mathit c}}}$ MESONS (including possibly non-${\mathit {\mathit q}}{\mathit {\overline{\mathit q}}}$ states)   >   ${{\mathit \psi}_{{2}}{(3823)}}$   >   ${\mathit m}_{{{\mathit \psi}_{{2}}{(3823)}}}–{\mathit m}_{{{\mathit \psi}{(2S)}}}$

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

INSPIRE   PDGID:

M212A00

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 AAIJ 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