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${{\mathit f}_{{2}}{(1270)}}$ MASS
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$1275.5 \pm0.8$ MeV
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${{\mathit f}_{{2}}{(1270)}}$ WIDTH
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$186.7 {}^{+2.2}_{-2.5}$ MeV (S = 1.4)
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Helicity-0/Helicity-2 RATIO IN ${{\mathit \gamma}}$ ${{\mathit \gamma}}$ $\rightarrow$ ${{\mathit f}_{{2}}{(1270)}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$
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$0.037 {}^{+0.160}_{-0.029}$
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Mode |
Fraction ($\Gamma_i$ / $\Gamma$) |
Scale Factor/ Conf. Level |
P (MeV/c) |
$\Gamma_{1}$ | ${{\mathit \pi}}{{\mathit \pi}}$ | |
$(84.2^{+2.9}_{-0.9})\%$
| S=1.1 | 623 |
| $\Gamma_{2}$ | ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$2 ${{\mathit \pi}^{0}}$ | |
$(7.7^{+1.1}_{-3.2})\%$
| S=1.2 | 563 |
| $\Gamma_{3}$ | ${{\mathit K}}{{\overline{\mathit K}}}$ | |
$(4.6^{+0.5}_{-0.4})\%$
| S=2.7 | 404 |
| $\Gamma_{4}$ | 2 ${{\mathit \pi}^{+}}$2 ${{\mathit \pi}^{-}}$ | |
$(2.8\pm{0.4})\%$
| S=1.2 | 560 |
| $\Gamma_{5}$ | ${{\mathit \eta}}{{\mathit \eta}}$ | |
$(4.0\pm{0.8})\times 10^{-3}$
| S=2.1 | 326 |
| $\Gamma_{6}$ | 4 ${{\mathit \pi}^{0}}$ | |
$(3.0\pm{1.0})\times 10^{-3}$
| S=1.0 | 565 |
| $\Gamma_{7}$ | ${{\mathit \gamma}}{{\mathit \gamma}}$ | |
$(1.42\pm{0.24})\times 10^{-5}$
| S=1.4 | 638 |
| $\Gamma_{8}$ | ${{\mathit \eta}}{{\mathit \pi}}{{\mathit \pi}}$ | |
$<8\times 10^{-3}$
| CL=95% | 478 |
| $\Gamma_{9}$ | ${{\mathit K}^{0}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ + c.c. | |
$<3.4\times 10^{-3}$
| CL=95% | 293 |
| $\Gamma_{10}$ | ${{\mathit e}^{+}}{{\mathit e}^{-}}$ | |
$<6\times 10^{-10}$
| CL=90% | 638 |
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