${\boldsymbol m}_{{{\boldsymbol \psi}{(3770)}}}{\boldsymbol m}_{{{\boldsymbol \psi}{(2S)}}}$
INSPIRE search
OUR FIT includes measurements of ${\mathit m}_{{{\mathit \psi}{(2S)}}}$, ${\mathit m}_{{{\mathit \psi}{(3770)}}}$, and ${\mathit m}_{{{\mathit \psi}{(3770)}}}{\mathit m}_{{{\mathit \psi}{(2S)}}}$.