A Study of The Rare Decays B0 -> Ds(*)+ pi- and B0 -> Ds(*)-K+

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dc.creatorAubert, B.
dc.creatorCollaboration, The BABAR
dc.date2002-07-23
dc.date.accessioned2026-07-07T03:35:24Z
dc.date.available2026-07-07T03:35:24Z
dc.descriptionWe report on the evidence for the decays B0 -> Ds+ pi- and B0 -> Ds- K+ and the results of a search for the decays B0 -> Ds*+ pi- and B0 -> Ds*-K+ from a sample of 84 million Upsilon(4S) decays into B meson pairs collected with the BABAR detector at the PEP II asymmetric-energy e^{+}e^{-} collider. The measured B0 -> Ds+ pi- yield has a probability of less than 10^{-3} to be a fluctuation of the background and we measure the branching fraction Br(B0 -> Ds+ pi-) = (3.2 +- 0.9 (stat) +- 1.0 (syst)) x 10^-5. The measured B0 -> Ds- K+ yield has a probability of less than 5 times 10^{-4} to be a fluctuation of the background and we measure the branching fraction Br(B0 -> Ds- K+) = (3.2 +- 1.0 (stat) +- 1.0 (syst)) x 10^-5. We also set 90% C.L. limits Br(B0 -> Ds*+ pi-)< 4.1 x 10^-5 and Br(B0 -> Ds*- K+) < 2.5 x 10^-5. All results are preliminary
dc.description14 Pages, two figures. Submitted to ICHEP 2002 Conference
dc.identifierhttps://arxiv.org/abs/hep-ex/0207053
dc.identifierhttp://arxiv.org/abs/hep-ex/0207053
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/37334
dc.subjectHigh Energy Physics - Experiment
dc.titleA Study of The Rare Decays B0 -> Ds(*)+ pi- and B0 -> Ds(*)-K+
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