Measurement of Time-Dependent CP Asymmetries and Constraints on sin(2beta+gamma) with Partial Reconstruction of B0 -> D*-+ pi+- Decays

Abstract

We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 82 million B B bar events recorded by the BABAR experiment at the PEP-II e+ e- storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum pi+- from the B decay and the low-momentum pi-+ from the D*-+ decay are used. We measure the amplitude of the asymmetry to be -0.063 +- 0.024(stat.) +- 0.014(syst.) and compute bounds on |sin(2beta + gamma)|.

7 pages, 3 postscript figures, submitted to Phys. Rev. Lett

References in corpus (1)

• Measurement of Time-Dependent CP Asymmetry in B0->D^(*)+-pi-+ Decays and Constraints on |sin(2beta+gamma)|

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• Measurement of the $B^0\to D^{\ast -}{D}_s^{\ast +}$ and $D_s^{+}\to \varphi {\pi }^{+}$ Branching Fractions
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• Measurement of the Branching Fractions of the Rare Decays B0->Ds(*)+pi-, B0->Ds(*)+rho-, and B0->Ds(*)-K(*)+
• Time-Dependent CP Violation Effects in Partially Reconstructed $B^0\to D^{\ast }\pi$ Decays
• Search for the Rare Decays B0 -> Ds(*)+ a0(2)-
• Final state phases in B -> Dπ, \bar{D}πdecays and CP-asymmetry
• Improved measurement of (2 beta+gamma)