The BABAR Collaboration, B. Aubert
Published 2002-07-25Version 1
We present measurements of the decays B0->Ds(*)+D*-, using data recorded by the BABAR detector in 1999 and 2000, consisting of 20.8 fb^-1. The analysis is conducted with a partial reconstruction technique, in which only the Ds(*)+ and the soft pion from the D*- decay are reconstructed. From the observed rates, we measure the branching fractions BR(B0->Ds+D*-) = (1.03 +- 0.14 +- 0.13 +- 0.26)% and BR(B0->Ds*+D*-) = (1.97 +- 0.15 +- 0.30 +- 0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the Ds+->phi pi+ branching fraction uncertainty. From the B0->Ds*+D*- angular distributions, we measure the fraction of longitudinal polarization Gamma_L/Gamma = (51.9 +- 5.0 +- 2.8)%, which is consistent with the theoretical prediction, based on factorization. These results are preliminary.
Comments: 22 pages, 10 postscript figues, submitted to ICHEP2002
Measurement of B0->D_s(*)+D*- Branching Fractions and B0->D_s*+D*- Polarization with a Partial Reconstruction Technique
Study of inclusive D_S^((*)+/-) production in B decays and measurement of B^0 --> D^(*-)D_S^((*)+) decays using a partial reconstruction technique
Measurement of the B^0 meson properties using partially reconstructed B^0 to D^{*-}pi^+ and B^0 to D^{*-}l^+nu decays with the BABAR detector
