Measured values of the $\mathit T$-, $\mathit CP$-, and $\mathit CPT$-asymmetry parameters, defined as the differences in S${}^{\pm{}}_{{{\mathit \alpha}},{{\mathit \beta}}}$ and C${}^{\pm{}}_{{{\mathit \alpha}},{{\mathit \beta}}}$ between symmetry-transformed transitions. The indices ${{\mathit \alpha}}$ = ${{\mathit \ell}^{+}}$, ${{\mathit \ell}^{-}}$ and ${{\mathit \beta}}$ = ${{\mathit K}_S^0}$ , ${{\mathit K}_L^0}$ stand for reconstructed the flavor final state and the $\mathit CP$ final states from ${{\mathit \Upsilon}{(4S)}}$ decay. The sign $\pm{}$ indicates whether the decay to the flavor final state ${{\mathit \alpha}}$ occurs before or after the decay to the $\mathit CP$ final state.
Alternatively, violations of $\mathit CPT$ symmetry and Lorentz invariance are searched for by studying interference effects in ${{\mathit B}^{0}}$ mixing. Results are expressed in terms of the standard model extension parameter ${{\mathit \Delta}}{{\mathit a}}$, which describes the difference between the couplings of the valence quarks within ${{\mathit B}^{0}}$ meson with the Lorentz-violating fields.