Abstract
Considering that the existing experimental limit for CPT violation is still poor, we explore various possible ways to test CPT symmetry in CP-violating B decays at B factories. We find that it is difficult to distinguish between the effect of direct CP violation and that of CPT violation in the time-integrated measurements of neutral B decays to CP eigenstates such as ψ and . Instead, a cleaner signal of small CPT violation may appear in the time-integrated CP asymmetries for a few non-CP-eigenstate channels, e.g., /B → and . The time-dependent measurements of CP asymmetries are available, in principle, to limit the size of CPT-violating effects in neutral B-meson decays.
DOI:https://doi.org/10.1103/PhysRevD.50.R2957
©1994 American Physical Society