PARAMETERS FOR ${{\boldsymbol K}_S^0}$ $\rightarrow$ 3 ${{\boldsymbol \pi}}$ DECAY

$\vert \eta _{000}\vert $ = $\vert \boldsymbol A$( ${{\boldsymbol K}_S^0}$ $\rightarrow$ 3 ${{\boldsymbol \pi}^{0}}$ )/$\boldsymbol A$( ${{\boldsymbol K}_L^0}$ $\rightarrow$ 3 ${{\boldsymbol \pi}^{0}}$ )$\vert $ INSPIRE search

A non-zero value violates CP invariance.

VALUE

CL%

EVTS

DOCUMENT ID

TECN

$\bf{<0.0088}$

590M

KLOE

• • • We do not use the following data for averages, fits, limits, etc. • • •

$<0.018$

37.8M

KLOE

$<0.045$

4.9M

NA48

Conservation Laws:

$\mathit CP$ INVARIANCE

References:

BABUSCI

PL B723 54

A New Limit on the $\mathit CP$ Violating Decay ${{\mathit K}_S^0}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ with the KLOE Experiment

PL B619 61

A Direct Search for the $\mathit CP$-Violating Decay ${{\mathit K}_S^0}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ with the KLOE detector at DA$\Phi $NE

PL B610 165

Search for $\mathit CP$ Violation in ${{\mathit K}^{0}}$ $\rightarrow$ 3 ${{\mathit \pi}^{0}}$ Decays