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${{\mathit a}_{{1}}{(1260)}}$ MASS
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$1230 \pm40$ MeV
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${{\mathit a}_{{1}}{(1260)}}$ WIDTH
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$250\text{ to }600 $ MeV
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${\mathit D}{\mathrm -wave}/{\mathit S}{\mathrm -wave}$ AMPLITUDE RATIO IN DECAY OF ${{\mathit a}_{{1}}{(1260)}}$ $\rightarrow$ ${{\mathit \rho}}{{\mathit \pi}}$
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$-0.062 \pm0.020$ (S = 2.3)
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|
Mode |
Fraction ($\Gamma_i$ / $\Gamma$) |
Scale Factor/ Conf. Level |
P (MeV/c) |
$\Gamma_{1}$ | 3 ${{\mathit \pi}}$ | |
seen
| | 577 |
| $\Gamma_{2}$ | ( ${{\mathit \rho}}{{\mathit \pi}}$) $_{\mathit S{\mathrm {-wave}}}$ , ${{\mathit \rho}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | 353 |
| $\Gamma_{3}$ | ( ${{\mathit \rho}}{{\mathit \pi}}$) $_{\mathit D{\mathrm {-wave}}}$ , ${{\mathit \rho}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | 353 |
| $\Gamma_{4}$ | ( ${{\mathit \rho}{(1450)}}{{\mathit \pi}}$) $_{\mathit S{\mathrm {-wave}}}$ , ${{\mathit \rho}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | -1 |
| $\Gamma_{5}$ | ( ${{\mathit \rho}{(1450)}}{{\mathit \pi}}$) $_{\mathit D{\mathrm {-wave}}}$ , ${{\mathit \rho}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | -1 |
| $\Gamma_{6}$ | ${{\mathit f}_{{0}}{(500)}}{{\mathit \pi}}$ , ${{\mathit f}_{{0}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | |
| $\Gamma_{7}$ | ${{\mathit f}_{{0}}{(980)}}{{\mathit \pi}}$ , ${{\mathit f}_{{0}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
not seen
| | 179 |
| $\Gamma_{8}$ | ${{\mathit f}_{{0}}{(1370)}}{{\mathit \pi}}$ , ${{\mathit f}_{{0}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | -1 |
| $\Gamma_{9}$ | ${{\mathit f}_{{2}}{(1270)}}{{\mathit \pi}}$ , ${{\mathit f}_{{2}}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ | |
seen
| | -1 |
| $\Gamma_{10}$ | ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ | |
seen
| | 576 |
| $\Gamma_{11}$ | ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ | |
not seen
| | 577 |
| $\Gamma_{12}$ | ${{\mathit K}}{{\mathit K}}{{\mathit \pi}}$ | |
seen
| | 250 |
| $\Gamma_{13}$ | ${{\mathit K}^{*}{(892)}}{{\mathit K}}$ | |
seen
| | -1 |
| $\Gamma_{14}$ | ${{\mathit \pi}}{{\mathit \gamma}}$ | |
seen
| | 608 |
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