1
From a simultaneous fit to the hadronic and ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ cross section, assuming $\Gamma $ = $\Gamma _{{{\mathit h}}}$ $+$ $\Gamma _{{{\mathit e}}}$ $+$ $\Gamma _{{{\mathit \mu}}}$ $+$ $\Gamma _{{{\mathit \tau}}}$ and lepton universality. Does not include vacuum polarization correction.
2
The initial-state radiation correction reevaluated by ANDREOTTI 2007 in its Ref. [4].
References:
ABLIKIM
2008B
PL B659 74
Direct Measurements of the Cross Sections for ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ hadrons (non-${{\mathit D}}{{\overline{\mathit D}}}$) in the Range from 3.65 to 3.87 GeV and the Branching Fraction for ${{\mathit \psi}{(3770)}}$ $\rightarrow$ non-${{\mathit D}}{{\overline{\mathit D}}}$
ANDREOTTI
2007
PL B654 74
Precision Measurements of the Total and Partial Widths of the ${{\mathit \psi}{(2S)}}$ Charmonium Meson with a new Complementary-Scan Technique in ${{\overline{\mathit p}}}{{\mathit p}}$ Source Annihilations
ABLIKIM
2006L
PRL 97 121801
Measurements of the Branching Fractions for ${{\mathit \psi}{(3770)}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\overline{\mathit D}}^{0}}$, ${{\mathit D}^{+}}{{\mathit D}^{-}}$, ${{\mathit D}}{{\overline{\mathit D}}}$, and the Resonance Parameters of ${{\mathit \psi}{(3770)}}$ and ${{\mathit \psi}{(2S)}}$
BAI
2002B
PL B550 24
A Measurement of ${{\mathit \psi}{(2S)}}$ Resonance Parameters
ARMSTRONG
1993B
PR D47 772
Measurement of the ${{\mathit J / \psi}}$ and ${{\mathit \psi}^{\,'}}$ Resonance Parameters in ${{\overline{\mathit p}}}{{\mathit p}}$ Annihilation
