| | | An overall fit to total width, partial width, 7 branching ratios uses 22 measurements and one constraint to determine 9 parameters. The overall fit has a $\chi {}^{2}$ = 9.5 for 14 degrees of freedom. |
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| 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.
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| | | x6 | 100 | | x7 | | 100 | | x8 | | | 100 | | x9 | | | | 100 | | x10 | | | | | 100 | | x11 | | | | | | 100 | | x12 | | | | | | | 100 | | x14 | | | | | | | | 100 | | Γ | | | | | | | | | 100 | | | x6 | x7 | x8 | x9 | x10 | x11 | x12 | x14 | Γ |
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| | | | Mode | Rate (MeV) | Scale factor |
| | Γ6 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ | $0.9892$ $\pm0.0016$ | | | Γ7 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ | $0.0099$ $\pm0.0016$ | | | Γ8 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \gamma}}$ | ($4.7$ $\pm0.6$) $ \times 10^{-4}$ | 1.4 | | Γ9 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \eta}}{{\mathit \gamma}}$ | ($3.00$ $\pm0.21$) $ \times 10^{-4}$ | | | Γ10 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \gamma}}$ | ($4.5$ $\pm0.8$) $ \times 10^{-5}$ | | | Γ11 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ | ($4.55$ $\pm0.28$) $ \times 10^{-5}$ | | | Γ12 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ | ($4.72$ $\pm0.05$) $ \times 10^{-5}$ | | | Γ14 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ | ($1.8$ $\pm0.9$) $ \times 10^{-5}$ | |
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| | | An overall fit to total width, partial width, uses 10 measurements and one constraint to determine 3 parameters. The overall fit has a $\chi {}^{2}$ = 10.7 for 8 degrees of freedom. |
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| 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.
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| | | x2 | 100 | | x3 | | 100 | | Γ | | | 100 | | | x2 | x3 | Γ |
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| | | | Mode | Rate (MeV) | Scale factor |
| | Γ2 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \pi}^{0}}$ | $0.99955$ $\pm0.00005$ | 2.2 | | Γ3 | ${{\mathit \rho}{(770)}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \gamma}}$ | ($4.5$ $\pm0.5$) $ \times 10^{-4}$ | 2.2 |
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