# CONSTRAINED FIT INFORMATIONshow precise values?

 An overall fit to 2 branching ratios uses 6 measurements and one constraint to determine 3 parameters. The overall fit has a $\chi {}^{2}$ = 4.6 for 4 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 x2 100 x4 100 x1 x2 x4

 Mode Fraction (Γi / Γ) Scale factor Γ1 ${{\mathit \pi}^{0}}$ $\rightarrow$ 2 ${{\mathit \gamma}}$ $0.98823$ $\pm0.00034$ 1.5 Γ2 ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit \gamma}}$ $0.01174$ $\pm0.00035$ 1.5 Γ4 ${{\mathit \pi}^{0}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{+}}{{\mathit e}^{-}}{{\mathit e}^{-}}$ ($3.34$ $\pm0.16$) $\times 10^{-5}$