Measurement of the Branching Fraction and CP-violating Asymmetries in Neutral B Decays to D*+-D-+

Abstract

We present measurements of the branching fraction and CP-violating asymmetries for neutral B decays to D*+-D-+. The measurement uses a data sample of approximately 88 million Y(4S) --> B Bbar decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We measure the branching fraction to be (8.8 +- 1.0 +- 1.3) x 10^-4 and the time-integrated CP-violating asymmetry between the rates to D*+D- and D*-D+ to be A = -0.03 +- 0.11 +- 0.05. We also measure the time-dependent CP-violating asymmetry parameters to be S-+ = -0.24 +- 0.69 +- 0.12, C-+ = -0.22 +- 0.37 +- 0.10 for B --> D*-D+ and S+- = -0.82 +- 0.75 +- 0.14$, C+- = -0.47 +- 0.40 +- 0.12 for B --> D*+D-. In each case the first error is statistical and the second error is systematic.

arXiv comment7 pages, 3 figures, published as Phys. Rev. Lett 90 (2003) 221801

References in corpus (7)

• The BABAR Detector
• CP Asymmetries in B Decays with New Physics in Decay Amplitudes
• Measurement of the CP-Violating Asymmetry Amplitude sin2beta
• Improved Measurement of Mixing-induced CP Violation in the Neutral B Meson System
• A Study of Time-Dependent CP-Violating Asymmetries and Flavor Oscillations in Neutral B Decays at the Upsilon(4S)
• Observation of the decay B^0->D+D*-
• Search for the Decays B^0 -> D^{(*)+} D^{(*)-}

Cited by in corpus (9)

• Time-Dependent CP Violation in $B^0\to P^0{P}^0{X}^0$ Decays
• Measurement of Branching Fractions and CP-Violating Charge Asymmetries for B Meson Decays to D(*)D(*), and Implications for the CKM Angle gamma
• Measurements of time-dependent CP asymmetries in B0 --> D(*)+D(*)- decays
• Observing Direct CP Violation in Untagged B-Meson Decays
• Search for CP violation in the decay B0->D*+-D-+
• Extracting γfrom Bd(t) -> D(*)+ D(*)- and Bd -> Ds(*)+ D(*)- Decays
• Results on the CKM angle {${\varphi }_1$ $(\beta )$}
• Observation of $B^0\to D^{+}{D}^{-}$, $B^{-}\to D^0{D}^{-}$ and $B^{-}\to D^0{D}^{\ast -}$ decays
• A Measurement of gamma from the Decays Bd(t) -> D(*)+ D(*)- and Bd -> Ds(*)+ D(*)-