${{\mathit \psi}{(4230)}}$ WIDTH

INSPIRE   JSON  (beta) PDGID:
M222W
VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 20\text{ to }100 }$ OUR ESTIMATE
$\bf{ 50 \pm9}$ OUR AVERAGE  Error includes scale factor of 3.8.  See the ideogram below.
$47.2$ $\pm22.8$ $\pm10.5$ 1
ABLIKIM
2020AG
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
$46.2$ $\pm4.7$ $\pm2.1$ 2
ABLIKIM
2020N
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit J / \psi}}$
$82.0$ $\pm5.7$ $\pm0.4$ 2
ABLIKIM
2020O
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit J / \psi}}$
$28.2$ $\pm3.9$ $\pm1.6$ 3
ABLIKIM
2019AI
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \chi}_{{{c0}}}}$
$77.0$ $\pm6.8$ $\pm6.3$
ABLIKIM
2019R
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit D}^{0}}{{\mathit D}^{*-}}$ + c.c.
$115$ ${}^{+38}_{-26}$ $\pm12$ 4
ABLIKIM
2019V
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{{c1}}}{(3872)}}$
$44.1$ $\pm4.3$ $\pm2.0$ 5
ABLIKIM
2017B
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$
$66.0$ ${}^{+12.3}_{-8.3}$ $\pm0.4$
ABLIKIM
2017G
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit h}_{{{c}}}}$
$80.1$ $\pm24.6$ $\pm2.9$ 6
ABLIKIM
2017V
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$41.2$ $\pm16.0$ $\pm16.4$
ABLIKIM
2020N
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit T}_{{{c {{\overline{\mathit c}}} 1}}}{(3900)}^{0}}$ , ${{\mathit T}_{{{c {{\overline{\mathit c}}} 1}}}^{0}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit J / \psi}}$
$38$ $\pm12$ $\pm2$ 180 7
ABLIKIM
2015C
 BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \chi}_{{{c0}}}}$
1  Solution 1 of 8 with equal fit quality to the ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ cross section between 3.8 and 4.6 GeV to the coherent sum of four resonant amplitudes. Other solutions range from $36.4$ $\pm16.8$ $\pm8.1$ to $49.6$ $\pm22.6$ $\pm11.0$ MeV.
2  From a fit of the measured cross section in the range $\sqrt {s }$ = $3.808 - 4.600$ GeV.
3  From a fit of the measured cross section from $\sqrt {s }$ = $4.178 - 4.278$ GeV. Supersedes ABLIKIM 2015C.
4  Simultaneous fit to ${{\mathit \chi}_{{{c1}}}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit J / \psi}}$ and ${{\mathit \chi}_{{{c1}}}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$.
5  From a three-resonance fit.
6  From a fit to the cross section for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ $\rightarrow$ 2 ( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) ${{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$ obtained from 16 center-of-mass energies between 4.008 and 4.600 GeV and comprising 5.1 fb${}^{-1}$.
7  From a 3-parameter fit of measured cross sections from $\sqrt {s }$ = $4.21 - 4.42$ GeV to a phase-space modified Breit-Wigner function, using the decays ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$, ${{\mathit \chi}_{{{c0}}}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}$, and ${{\mathit \omega}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$.

           ${{\mathit \psi}{(4230)}}$ WIDTH (MeV)
References