$\bf{
4368 \pm13}$
|
OUR AVERAGE
Error includes scale factor of 3.7.
|
$4320.0$ $\pm10.4$ $\pm7.0$ |
|
1 |
|
BES3 |
$4383.8$ $\pm4.2$ $\pm0.8$ |
|
2 |
|
BES3 |
$4347$ $\pm6$ $\pm3$ |
279 |
3 |
|
BELL |
$4340$ $\pm16$ $\pm9$ |
37 |
4 |
|
BABR |
• • • We do not use the following data for averages, fits, limits, etc. • • • |
$4383.7$ $\pm2.9$ $\pm6.2$ |
|
5 |
|
RVUE |
$4386.4$ $\pm2.1$ $\pm6.4$ |
|
6 |
|
RVUE |
$4355$ ${}^{+9}_{-10}$ $\pm9$ |
74 |
7 |
|
RVUE |
$4324$ $\pm24$ |
|
8 |
|
BABR |
$4361$ $\pm9$ $\pm9$ |
47 |
4 |
|
BELL |
1
From a three-resonance fit.
|
2
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${}^{-1}$.
|
3
From a two-resonance fit. Supersedes WANG 2007D.
|
4
From a two-resonance fit.
|
5
From a three-resonance fit.
|
6
From a combined fit of BELLE, BABAR and BES3 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ and ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \psi}{(2S)}}$ data.
|
7
From a combined fit of AUBERT 2007S and WANG 2007D data with two resonances.
|
8
From a single-resonance fit. Systematic errors not estimated.
|