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

The Belle collaboration

paper

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

arXiv:hep-ex/0701053

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))%.

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