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

INSPIRE   PDGID:

S008DT

A test of $\mathit CPT$ invariance.

VALUE ($ 10^{-4} $) DOCUMENT ID TECN $5.5$ $\pm7.1$ AYRES 1971 CNTR • • We do not use the following data for averages, fits, limits, etc. • • $-14$ $\pm29$ PETRUKHIN 1968 CNTR $40$ $\pm70$ BARDON 1966 CNTR $23$ $\pm40$ 1 LOBKOWICZ 1966 CNTR 1  This is the most conservative value given by LOBKOWICZ 1966 .

Conservation Laws:

$\mathit CPT$ INVARIANCE

References:

AYRES 1971 PR D3 1051 Measurements of the Lifetimes of Positive and Negative Pions Also PR 157 1288 Comparison of ${{\mathit \pi}^{+}}$ and ${{\mathit \pi}^{-}}$ Lifetimes Also PRL 21 261 Precise Comparison of ${{\mathit \pi}^{+}}$ and ${{\mathit \pi}^{-}}$ Lifetimes Also Thesis UCRL 18369 Comparison of ${{\mathit \pi}^{+}}$ and ${{\mathit \pi}^{-}}$ Lifetimes as a Test of $\mathit CPT$ Invariance Also PRL 23 1267 Charged Pion Lifetime and a Limit on a Fundamental Length PETRUKHIN 1968 JINR P1 3862 Comparison of the Life-Times of the Charged Pions BARDON 1966 PRL 16 775 Comparison of Pion and Antipion Lifetimes LOBKOWICZ 1966 PRL 17 548 Precise Measurement of the ${{\mathit K}^{+}}/{{\mathit K}^{-}}$ and ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ Lifetime Ratios