${{\mathit \chi}_{{{c0}}}{(3915)}}$ MASS

INSPIRE   JSON  (beta) PDGID:
M159M
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 3922.1 \pm1.8}$ OUR AVERAGE  Error includes scale factor of 1.5.  See the ideogram below.
$3956$ $\pm5$ $\pm10$ 360 1
AAIJ
2023AA
 LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s}}}^{-}}{{\mathit K}^{+}}$
$3923.8$ $\pm1.5$ $\pm0.4$ 1.2k 2
AAIJ
2020AI
 LHCB ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit D}^{+}}{{\mathit D}^{-}}{{\mathit K}^{+}}$
$3919.4$ $\pm2.2$ $\pm1.6$ $59$ $\pm10$
LEES
2012AD
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \omega}}{{\mathit J / \psi}}$
$3919.1$ ${}^{+3.8}_{-3.4}$ $\pm2.0$
DEL-AMO-SANCH..
2010B
 BABR ${{\mathit B}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}{{\mathit K}}$
$3915$ $\pm3$ $\pm2$ $49$ $\pm15$
UEHARA
2010
BELL 10.6 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \omega}}{{\mathit J / \psi}}$
$3943$ $\pm11$ $\pm13$ $58$ $\pm11$ 3
CHOI
2005
BELL ${{\mathit B}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}{{\mathit K}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$3920.9$ $\pm0.9$ 4
LI
2024
RVUE ${{\mathit \omega}}{{\mathit J / \psi}}$ invariant mass
$3922.4$ $\pm6.5$ $\pm2.0$ 5
WANG
2022A
 BELL ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \psi}{(2S)}}$
$3926.4$ $\pm2.2$ $\pm1.2$ 6
ABLIKIM
2019V
 BES ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \omega}}{{\mathit J / \psi}}$
$3914.6$ ${}^{+3.8}_{-3.4}$ $\pm2.0$ 3
AUBERT
2008W
 BABR Superseded by DEL-AMO-SANCHEZ 2010B
1  ${{\mathit D}_{{{s}}}^{+}}{{\mathit D}_{{{s}}}^{-}}$ near-threshold enhancement parameterized with a Flatte-like function .
2  Obtained from the full amplitude analysis. Parameterized with the relativistic Breit-Wigner line shape.
3  ${{\mathit \omega}}{{\mathit J / \psi}}$ threshold enhancement fitted as an S-wave Breit-Wigner resonance.
4  From a simultaneous ${{\mathit \chi}^{2}}$ fit to the distributions of the ${{\mathit \omega}}{{\mathit J / \psi}}$ invariant mass measured by BaBar and Belle in the processes ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}$ and ${{\mathit B}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}{{\mathit K}}$. LHCb results also taken into account as an additional constraint in the ${{\mathit \chi}^{2}}$ calculation.
5  Not distinguished from the ${{\mathit \chi}_{{{c2}}}{(3930)}}$.
6  Could also be ${{\mathit X}{(3940)}}$. Significance 3.1$\sigma $. Fit with additional resonance at $3963.7$ $\pm5.7$ MeV, significance 3.4$\sigma $.

           ${{\mathit \chi}_{{{c0}}}{(3915)}}$ MASS (MeV)
References