The authors present preliminary observations of the decays of charged B mesons to a K* and a D[sup 0] where the latter particle is seen in final states of even and odd CP. They express the results in terms of R[sub CP] and A[sub CP]. With more statistics, these quantities will constrain [tau][sub B], the ratio of amplitudes defined in equations provided and the angle [gamma] of the unitary triangle by application of the Gronau-London-Wyler method.

The authors have reconstructed B[sup -] --> D[sup 0]K[sup -] decays with D[sup 0] mesons decaying to non-CP (K[sup -][pi][sup +]), CD-even (K[sup -]K[sup +], [pi][sup -][pi][sup +]) and CP-odd (K[sup 0][sub s][pi][sup 0]) eigenstates. They have measured the CP asymmetries A[sub CP[sup +]] = 0.40 [+-] 0.15(stat) [+-] 0.08(syst), A[sup CP[sup -]] = 0.21 [+-] 0.17(stat) [+-] 0.07(syst), and the double ratio of branching fractions R[sub +] = 0.87 [+-] 0.14(stat) [+-] 0.06(syst), R[sub -] = 0.80 [+-] 0.14(stat) [+-] 0.08(syst). These results improve the previous existing measurements from BABAR. All results presented in this document are preliminary.

We present new measurements of CP asymmetries in B° → (c{bar c})K{sup 0(*)} decays recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC between 1999 and 2004. We determine sin2[beta] from decay-time distributions of 7730 signal events in a data sample of approximately 227 x 106 [Upsilon](4S) → B{bar B} decays. The measured value of sin2[beta] = 0.722 ± 0.040(stat) ± 0.023(syst) is in agreement with the value expected from the Standard Model. In a separate time-dependent angular analysis of B → J/[psi] K*° (K*° → K{sub S}°[pi]°) decays we measure cos 2[beta] to be positive at 86% CL.

The authors present a preliminary measurement of the time-dependent CP asymmetry for the neutral B-meson decay B[sup 0] --> [phi]K[sup 0]. They use a sample of approximately 227 million B-meson pairs recorded at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. They reconstruct the CP eigenstates [phi]K[sub s][sup 0] and [phi]K[sub L][sup 0] where [phi] --> K[sup +]K[sup -], K[sub s][sup 0] --> [pi][sup +][pi][sup -], and K[sub L][sup 0] is observed via its hadronic interactions. The other B meson in the event is tagged as either a B[sup 0] or [bar B][sup 0] from its decay products. The values of the CP-violation parameters deived from the combined [phi]K[sup 0] dataset are S[sub [phi]K] = +0.50 [+-] 0.25(stat.)[sub -0.04][sup +0.07](syst.) and C[sub [phi]K] = 0.00 [+-] 0.23(stat.) [+-]0.05(syst.). In addition, the authors measure the CP-violating charge asymmetry A[sub CP](B[sup +] --> [phi]K[sup +]) = 0.054 [+-] 0.056(stat.) [+-] 0.012(syst.). All results are preliminary.

We report on preliminary measurements of time-dependent CP asymmetries in neutral B decays to CP eigenstates with transition amplitudes that are dominated by penguin-type loops. The results are obtained from a data sample of up to 227 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC. The amplitudes of the effective mixing-induced CP asymmetries, sin2{beta}{sub eff}, are derived from decay-time distributions of events in which one neutral B meson is fully reconstructed in a final state without charm and the other B meson is determined to be either a B{sup 0} or {bar B}{sup 0} from its decay products.