Measurement of B0->D_s(*)+D*- Branching Fractions and B0->D_s*+D*- Polarization with a Partial Reconstruction Technique

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dc.creatorThe BABAR Collaboration
dc.creatorAubert, B.
dc.date2003-02-13
dc.date.accessioned2026-07-07T12:01:54Z
dc.date.available2026-07-07T12:01:54Z
dc.descriptionWe 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.
dc.description9 pages, 4 postscript figues, submitted to Physical Review D (Rapid Communications)
dc.identifierhttps://arxiv.org/abs/hep-ex/0302015
dc.identifierhttp://arxiv.org/abs/hep-ex/0302015
dc.identifierPhys.Rev.D67:092003,2003
dc.identifierdoi:10.1103/PhysRevD.67.092003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207254
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of B0->D_s(*)+D*- Branching Fractions and B0->D_s*+D*- Polarization with a Partial Reconstruction Technique
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