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

INSPIRE   PDGID:
S008DM
A test of $\mathit CPT$ invariance.
VALUE ($ 10^{-4} $) DOCUMENT ID TECN
$2$ $\pm5$
AYRES
1971
CNTR
Conservation Laws:
$\mathit CPT$ INVARIANCE
References