Abstract
Interference between Cabibbo-Kobayashi-Maskawa (CKM) favored and doubly-CKM-suppressed amplitudes in final states used for B-flavor tagging gives deviations from the standard time evolution assumed in CP-violation measurements at B factories producing coherent pairs. We evaluate these deviations for the standard time-dependent CP-violation measurements, the uncertainties they introduce in the measured quantities, and give suggestions for minimizing them. The uncertainty in the measured CP asymmetry for CP eigenstates is or less. The time-dependent analysis of proposed for measuring must incorporate possible tag-side interference, which could produce asymmetries as large as the expected signal asymmetry.
- Received 22 March 2003
DOI:https://doi.org/10.1103/PhysRevD.68.034010
©2003 American Physical Society