| Abstract |
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We present updated results on time-dependent CP asymmetries in fully
reconstructed B0->D(*)+-pi-+ and B0->D+-rho-+ decays in
approximately 232 million Y(4S)->BBbar events collected with the
BaBar detector at the PEP-II asymmetric-energy B factory at SLAC.
From a time-dependent maximum likelihood fit we obtain for the parameters
related to the CP violation angle 2beta+gamma:
a^{D\pi} = -0.010 +/- 0.023 +/- 0.007 ,
c_{\rm lep}^{D\pi} = -0.033 +/- 0.042 +/- 0.012 ,
a^{D^*\pi} = -0.040 +/- 0.023 +/- 0.010 ,
c_{\rm lep}^{D^*\pi} = 0.049 +/- 0.042 +/- 0.015 ,
a^{D\rho} = -0.024 +/- 0.031 +/- 0.009 ,
c_{\rm lep}^{D\rho} = -0.098 +/- 0.055 +/- 0.018 ,
where the first error is statistical and the second is systematic.
Using other measurements and theoretical assumptions, we interpret the results
in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle
and find |sin(2beta+gamma)| > 0.64 (0.40) at 68% (90%) confidence level.
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