2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/147794We make an analysis of the phase-convention dependence of the CP-violating parameter ε_B and give some comments on the reported CLEO and OPAL constraints on Reε_B. It is emphasized that ε_B has little advantage for the study of CP violation in the B^0_d-\bar{B}^0_d system.Latex 7 pages. Previous version is substantially changedHigh Energy Physics - Experimenttext