The BABAR Collaboration, B. Aubert
Published 2003-02-13Version 1
We present a study of the decays B0->D_s(*)+D*-, using 20.8 fb-1 of e+e- annihilation data recorded with the BABAR detector. The analysis is conducted with a partial reconstruction technique, in which only the D_s(*)+ and the soft pion from the D*- decay are reconstructed. We measure the branching fractions BR(B0->D_s+D*-) = (1.03 +/- 0.14 +/- 0.13 +/- 0.26)% and BR(B0->D_s*+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 D_s+->phi pi+ branching fraction uncertainty. From the B0->D_s*+D*- angular distributions, we measure the fraction of longitudinal polarization Gamma_L/Gamma = (51.9 +/- 5.0 +/- 2.8)%, which is consistent with theoretical predictions based on factorization.
Comments: 9 pages, 4 postscript figues, submitted to Physical Review D (Rapid Communications)
Journal: Phys.Rev.D67:092003,2003
Measurement of B0->Ds(*)+D*- branching fractions and polarization in the decay B0->Ds*+D*- 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 Branching Fraction for B+- --> chi_c0 K+-
