CONSTRAINED FIT INFORMATION show precise values?
 
A multiparticle fit to ${{\mathit \psi}{(2S)}}$, ${{\mathit \chi}_{{c0}}{(1P)}}$, ${{\mathit \chi}_{{c2}}{(1P)}}$ and ${{\mathit \chi}_{{c1}}{(1P)}}$ with 4 total widths, partial width,25 combinations of particle width obtained from integrated cross section,84 branching ratios uses 248 measurements and one constraint to determine 49 parameters. The overall fit has a $\chi {}^{2}$ = 379.8 for 200 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.
 
 x7  100
 x8   100
 x9    100
 x12     100
 x13      100
 x14       100
 x101        100
 x166         100
 x167          100
 x168           100
 Γ            100
   x7  x8  x9  x12  x13  x14  x101  x166  x167  x168 Γ
 
  Mode Rate (keV)Scale factor
Γ7  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$  ($7.93$ $\pm0.17$) $ \times 10^{-3}$ 
Γ8  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$  ($8.0$ $\pm0.6$) $ \times 10^{-3}$ 
Γ9  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$  ($3.1$ $\pm0.4$) $ \times 10^{-3}$ 
Γ12  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  $0.3468$ $\pm0.0030$ 
Γ13  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$  $0.1824$ $\pm0.0031$ 
Γ14  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \eta}}$  $0.0337$ $\pm0.0005$ 
Γ101  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit p}}{{\overline{\mathit p}}}$  ($2.94$ $\pm0.08$) $ \times 10^{-4}$ 
Γ166  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c0}}{(1P)}}$  $0.0979$ $\pm0.0020$ 
Γ167  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c1}}{(1P)}}$  $0.0975$ $\pm0.0024$ 
Γ168  ${{\mathit \psi}{(2S)}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \chi}_{{c2}}{(1P)}}$  $0.0952$ $\pm0.0020$