Correlated bounds on CP asymmetries in B0 → η′ Ks

Flavor SU(3) is used to constrain the coefficients of sin Deltamt and cos Deltamt in the time-dependent CP asymmetry of B-0 --> eta'K-S. Correlated bounds in the (S-eta'K, C-eta'K) plane are derived, by using recent rate measurements of B-0 decays into K+K-, pi(0)pi(0), pi(0)eta, pi(0)eta', etaeta, etaeta', eta'eta'. Stringent bounds are obtained when assuming a single SU(3) singlet amplitude and when neglecting annihilation-type amplitudes. (C) 2004 Elsevier B.V. All rights reserved.