Improved measurement of B0bar -> D_s^-D^+ and search for B0bar -> D_s^+D_s^- at Belle

et al. (for the Belle Collaboration); K. Abe

arxiv: hep-ex/0508040 · v1 · pith:NTAP5W4Anew · submitted 2005-08-19 · ✦ hep-ex

Improved measurement of B0bar -> D_s^-D^+ and search for B0bar -> D_s^+D_s^- at Belle

K. Abe , et al. (for the Belle Collaboration) This is my paper

classification ✦ hep-ex

keywords b0barbellebranchingfractionsearchbbbardecaydecays

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We reconstruct B0bar -> D_s^-D^+ decays using a sample of 275 million BBbar pairs recorded by the Belle experiment, and we measure the branching fraction to be [7.42 +- 0.23(stat) +- 1.36(syst)] x 10^(-3). We also search for the related decay B0bar -> D_s^+D_s^-. We observe no statistically significant signal and set an upper limit on the branching fraction of 2.0 x 10^(-4) at 90% C.L.

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Improved measurement of B0bar -> D_s^-D^+ and search for B0bar -> D_s^+D_s^- at Belle

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