CONSTRAINED FIT INFORMATION show precise values?
 
An overall fit to the total width, partial width, 2 combinations of partial widths obtained from integrated cross section, and 21 branching ratios uses 53 measurements and one constraint to determine 9 parameters. The overall fit has a $\chi {}^{2}$ = 69.5 for 45 degrees of freedom.
 
The following off-diagonal array elements are the correlation coefficients <$\mathit \delta $x$_{i}\delta $x$_{j}$> $/$ ($\mathit \delta $x$_{i}\cdot{}\delta $x$_{j}$), in percent, from the fit to parameters ${{\mathit p}_{{{i}}}}$, including the branching fractions, $\mathit x_{i}$ = $\Gamma _{i}$ $/$ $\Gamma _{total}$.
 
 x1 100
 x2  100
 x4   100
 x5    100
 x7     100
 x8      100
 x11       100
 x21        100
 Γ${{\mathit \eta}^{\,'}{(958)}}$         100
   x1  x2  x4  x5  x7  x8  x11  x21 Γ${{\mathit \eta}^{\,'}{(958)}}$
 
    Mode RateScale factor
Γ1 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \eta}}$ ($42.5$ $\pm0.5$) $ \times 10^{-2}$ 
Γ2 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \rho}^{0}}{{\mathit \gamma}}$ (including non-resonant ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$) ($29.48$ $\pm0.35$) $ \times 10^{-2}$ 
Γ4 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \eta}}$ ($22.4$ $\pm0.5$) $ \times 10^{-2}$ 
Γ5 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \gamma}}$ ($2.52$ $\pm0.07$) $ \times 10^{-2}$ 
Γ7 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$ ($2.307$ $\pm0.033$) $ \times 10^{-2}$ 
Γ8 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ ($2.50$ $\pm0.17$) $ \times 10^{-3}$ 
Γ11 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ ($3.61$ $\pm0.17$) $ \times 10^{-3}$ 
Γ21 ${{\mathit \eta}^{\,'}{(958)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit e}^{-}}$ ($2.43$ $\pm0.06$) $ \times 10^{-3}$ 
Γ${{\mathit \eta}^{\,'}{(958)}}$ ${{\mathit \eta}^{\,'}{(958)}}$ WIDTH $0.188$ $\pm0.006$ (MeV)