Observation of the decays B- to Ds(*)+ K- pi-

Details Observation of the decays B- to Ds(*)+ K- pi- Observation of the decays B- to Ds(*)+ K- pi-

2006-07-26

arxiv.org/abs/hep-ex/0607062v1

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted to the 33rd International Conference on High-Energy Physics, ICHEP 06, 26 July - 2 August 2006, Moscow, Russia

Scientific paper

We report first observations of the decays B- to Ds(*)+ K- pi-, using 292
fb^-1 of data collected at Upsilon(4S) resonance energy by the BaBar detector
at the PEP II e+ e- collider. The branching fractions are measured to be B(B-
to Ds+ K- pi-) = (1.88 +- 0.13 +- 0.41) x 10^-4 and B(B- to Ds*+ K- pi-) =
(1.84 +- 0.19 +- 0.40) X 10^-4.

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