B. Aubert, BABAR Collaboration
Published 2005-07-01, updated 2005-10-24Version 2
Using a sample of 232 million Upsilon(4S) --> B Bbar events collected with the BABAR detector at the PEP-II B Factory in 1999-2004, we study B- --> D0 K*(892)- decays where K*- --> KS pi- and D0 --> K-pi+, K-pi+pi0, K-pi+pi+pi- (non-CP final states); K+K-, pi+pi- (CP+ eigenstates); KSpi0, KSphi and KSomega (CP- eigenstates). We measure four observables that are sensitive to the angle gamma of the CKM unitarity triangle; the partial-rate charge asymmetries A_CP+/- and the ratios of the B-decay branching fraction in CP+/- and non-CP decays R_CP+/-: A_CP+ = -0.08 +/- 0.19 (stat.) +/- 0.08 (syst.) A_CP- = -0.26 +/- 0.40 (stat.) +/- 0.12 (syst.) R_CP+ = 1.96 +/- 0.40 (stat.) +/- 0.11 (syst.) R_CP- = 0.65 +/- 0.26 (stat.) +/- 0.08 (syst.)
Comments: 7 pages, 1 figure, published in Physical Review D Rapid Communications. The title is more accurate. A better definition of the R_CP observables is used. The cartesian coordinates are introduced at the beginning of the paper. 4 more theoretical references are given
Journal: Phys.Rev.D72:071103,2005
Improved measurement of CP observables in B- --> D0_{CP} K- decays
Measurement of the CP Violation Parameters in B0 -> pi+ pi- Decays
Measurement of phi1 using B --> D[Ks pi+ pi-] h0
