${\mathit m}_{{{\mathit \chi}_{{c1}}{(3872)}}}–{\mathit m}_{{{\mathit J / \psi}}}$

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$774.9$ $\pm3.1$ $\pm3.0$ 522
 2004 F
D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit X}}$
References:
 ABAZOV 2004F
PRL 93 162002 Observation and Properties of the ${{\mathit X}{(3872)}}$ Decaying to ${{\mathit J / \psi}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV