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$({\mathit \tau}_{{{\mathit K}^{+}}}–{\mathit \tau}_{{{\mathit K}^{-}}})/{\mathit \tau}_{\mathrm {average}}$

This quantity is a measure of $\mathit CPT$ invariance in weak interactions.

VALUE (%)

DOCUMENT ID

TECN

$\bf{ 0.10 \pm0.09 }$

OUR AVERAGE Error includes scale factor of 1.2.

$-0.4$ $\pm0.4$

KLOE

$0.090$ $\pm0.078$

CNTR

$0.47$ $\pm0.30$

CNTR

Conservation Laws:

$\mathit CPT$ INVARIANCE

References:

JHEP 0801 073

Measurement of the Charged Kaon Lifetime with the KLOE Detector

PR 185 1676

Precise Measurement of the ${{\mathit K}^{+}}/{{\mathit K}^{-}}$ Lifetime Ratio

PRL 17 548

Precise Measurement of the ${{\mathit K}^{+}}/{{\mathit K}^{-}}$ and ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Lifetime Ratios

PRL 18 1214

Comparison of the ${{\mathit K}^{+}}$ and ${{\mathit K}^{-}}$ Decay Rates into the ${{\mathit \tau}}$ and ${{\mathit K}_{{\mu2}}}$ Modes

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