Measurement of Time-Dependent CP Asymmetry in $B^0\to D^{(*)\pm}π^\mp$ Decays and Constraints on $sin(2β+γ)$

Details Measurement of Time-Dependent CP Asymmetry in $B^0\to D^{(*)\pm}π^\mp$ Decays and Constraints on $sin(2β+γ)$ Measurement of Time-Dependent CP Asymmetry in $B^0\to D^{(*)\pm}π^\mp$ Decays and Constraints on $sin(2β+γ)$

2003-09-03

arxiv.org/abs/hep-ex/0309017v2

Phys.Rev.Lett. 92 (2004) 251801

Physics

High Energy Physics

High Energy Physics - Experiment

This paper has been withdrawn by the authors because it is a multiple posting of the same result. Please find the version of t

Scientific paper

We present a measurement of time-dependent CP-violating asymmetries in fully reconstructed $B^0->D^{(*)\pm}\pi^\mp$ decays in a data sample of approximately 88 million $Y(4S)\to B\bar{B}$ decays collected with the BaBar detector at the PEP-II asymmetric-energy B factory at SLAC. We interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle, and find $|sin(2\beta+\gamma)|>0.69$ at 68% confidence level. We exclude the hypothesis of no CP-violation ($sin(2\beta+\gamma) = 0$) at 83% confidence level.

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