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Measurement of the absolute branching fraction of the Ds+- meson

The Belle collaboration
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Abstract

The Ds+- -> K+-K-+pi+- absolute branching fraction is measured using e+e- -> Ds*+- Ds1-+(2536) events collected by the Belle detector at the KEKB e+e- asymmetric energy collider. Using the ratio of yields when either the Ds1 or Ds* is fully reconstructed, we find Br(Ds+- -> K+-K-+pi+-)= (4.0+-0.4(stat)+-0.4(sys))%.

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The Belle collaboration. 2007-01-30. Measurement of the absolute branching fraction of the Ds+- meson. https://arxiv.org/abs/hep-ex/0701053

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