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

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

2007-01-30

arxiv.org/abs/hep-ex/0701053v1

Physics

High Energy Physics

High Energy Physics - Experiment

BELLE-CONF-0612, ICHEP'06 conference paper. 18 pages, 6 figures

Scientific paper

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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