Study of Cabibbo Suppressed Decays of the Ds Charmed-Strange Meson involving a KS

Details Study of Cabibbo Suppressed Decays of the Ds Charmed-Strange Meson involving a KS Study of Cabibbo Suppressed Decays of the Ds Charmed-Strange Meson involving a KS

2007-08-07

arxiv.org/abs/0708.1029v1

Phys.Lett.B660:147-153,2008

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 6 figures

Scientific paper

10.1016/j.physletb.2007.12.050

We study the decay of Ds meson into final states involving a Ks and report
the discovery of Cabibbo suppressed decay modes Ds -> Kspi-pi+pi+ (179 +/- 36
events) and Ds -> Kspi+ (113 +/-26 events). The branching ratios for the new
modes are Gamma(Ds -> Kspi-pi+pi+)/Gamma(Ds -> KsK-pi+pi+) = 0.18 +/- 0.04 +/-
0.05 and Gamma(Ds -> Kspi+)/Gamma(Ds -> KsK+) = 0.104 +/- 0.024 +/- 0.013.

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