# ${{\boldsymbol \pi}^{+}}{{\boldsymbol \pi}^{-}}{{\boldsymbol \pi}^{0}}$ LEFT-RIGHT ASYMMETRY PARAMETER INSPIRE search

Measurements with an error $>$ $0.01$ have been omitted.
VALUE ($10^{-2}$) EVTS DOCUMENT ID TECN
$\bf{ 0.09 {}^{+0.11}_{-0.12}}$ OUR AVERAGE
$+0.09$ $\pm0.10$ ${}^{+0.09}_{-0.14}$ 1.34M
 2008 D
KLOE
$0.28$ $\pm0.26$ 165k
 1974
OSPK
$-0.05$ $\pm0.22$ 220k
 1972
ASPK
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1.5$ $\pm0.5$ 37k , 1
 1968 C
ASPK
1  The GORMLEY 1968C asymmetry is probably due to unmeasured ($\mathbf {E}{\times }$ $\mathbf {B}$) spark chamber effects. New experiments with ($\mathbf {E}{\times }$ $\mathbf {B}$) controls don't observe an asymmetry.
Conservation Laws:
 CHARGE CONJUGATION ($\mathit C$) INVARIANCE
References:
 AMBROSINO 2008D
JHEP 0805 006 Determination of ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ Dalitz Plot Slopes and Asymmetries with the KLOE Detector
 JANE 1974
PL 48B 260 A Measurement of the Charge Asymmetry in the Decay ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
 LAYTER 1972
PRL 29 316 Measurement of the Charge Asymmetry in the Decay ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$
 GORMLEY 1968C
PRL 21 402 Experimental Test of $\mathit C$ Invariance in ${{\mathit \eta}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$