CONSTRAINED FIT INFORMATION show precise values?
 
An overall fit to total width,10 combinations of particle width obtained from integrated cross section,21 branching ratios uses 97 measurements and one constraint to determine 15 parameters. The overall fit has a $\chi {}^{2}$ = 120.8 for 83 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, $\mathit x_{i}$ =$\Gamma _{i}$ $/$ $\Gamma _{total}$. The fit constrains the ${{\mathit x}_{{i}}}$ whose labels appear in this array to sum to one.
 
 x1  100
 x5   100
 x8    100
 x15     100
 x17      100
 x34       100
 x35        100
 x38         100
 x42          100
 x45           100
 x48            100
 x50             100
 x56              100
 Γ               100
 x999                100
   x1  x5  x8  x15  x17  x34  x35  x38  x42  x45  x48  x50  x56 Γ  x999
 
  Mode Rate (MeV)Scale factor
Γ1  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \eta}^{\,'}{(958)}}{{\mathit \pi}}{{\mathit \pi}}$  $0.60$ $\pm0.08$ 
Γ5  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit K}^{*}{(892)}}{{\overline{\mathit K}}^{*}{(892)}}$  $0.20$ $\pm0.04$ 
Γ8  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \phi}}$  $0.051$ $\pm0.006$ 
Γ15  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \omega}}{{\mathit \omega}}$  $0.066$ $\pm0.015$ 
Γ17  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit f}_{{2}}{(1270)}}{{\mathit f}_{{2}}{(1270)}}$  $0.31$ $\pm0.08$ 
Γ34  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \pi}}$  $2.25$ $\pm0.14$ 
Γ35  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit K}}{{\overline{\mathit K}}}{{\mathit \eta}}$  $0.42$ $\pm0.05$ 
Γ38  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  $0.206$ $\pm0.032$ 
Γ42  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ 2( ${{\mathit K}^{+}}{{\mathit K}^{-}}$) $0.044$ $\pm0.009$ 
Γ45  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ 2( ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $0.277$ $\pm0.035$ 
Γ48  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$  $0.043$ $\pm0.004$ 
Γ50  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\overline{\mathit \Lambda}}}$  $0.033$ $\pm0.007$ 
Γ56  ${{\mathit \eta}_{{c}}{(1S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \gamma}}$  $0.0054$ $\pm0.0004$