# ${{\boldsymbol X}{(3915)}}$ WIDTH INSPIRE search

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 20 \pm5}$ OUR AVERAGE  Error includes scale factor of 1.1.
$13$ $\pm6$ $\pm3$ 59
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \omega}}{{\mathit J / \psi}}$
$31$ ${}^{+10}_{-8}$ $\pm5$
 2010 B
BABR ${{\mathit B}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}{{\mathit K}}$
$17$ $\pm10$ $\pm3$ 49
 2010
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \omega}}{{\mathit J / \psi}}$
$87$ $\pm22$ $\pm26$ 58 1
 2005
BELL ${{\mathit B}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}{{\mathit K}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$3.8$ $\pm7.5$ $\pm2.6$ 2
 2019 V
BES ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \omega}}{{\mathit J / \psi}}$
$34$ ${}^{+12}_{-8}$ $\pm5$ 1
 2008 W
BABR Superseded by DEL-AMO-SANCHEZ 2010B
1  ${{\mathit \omega}}{{\mathit J / \psi}}$ threshold enhancement fitted as an S-wave Breit-Wigner resonance.
2  Could also be ${{\mathit X}{(3940)}}$. Significance 3.1$\sigma$. Fit with additional resonance at $3963.7$ $\pm5.7$ MeV, significance 3.4$\sigma$.
References:
 ABLIKIM 2019V
PRL 122 232002 Study of $e^+e^- \to \gamma \omega J/\psi$ and Observation of $X(3872) \to \omega J/\psi$
PR D86 072002 Study of ${{\mathit X}{(3915)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \omega}}$ in Two-Photon Collisions
PR D82 011101 Evidence for the Decay ${{\mathit X}{(3872)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \omega}}$
PRL 104 092001 Observation of a Charmoniumlike Enhancement in the ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}$ Process
PRL 101 082001 Observation of ${{\mathit Y}{(3940)}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \omega}}$ in ${{\mathit B}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \omega}}{{\mathit K}}$ at BABAR
PRL 94 182002 Observation of a Near-Threshold ${{\mathit \omega}}{{\mathit J / \psi}}$ Mass Enhancement in Exclusive ${{\mathit B}}$ $\rightarrow$ ${{\mathit K}}{{\mathit \omega}}{{\mathit J / \psi}}$ Decays