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arXiv · 0704.2652

Observation of the Decay \bar{B0}-> Ds+ Lambda \bar{p}

T. Medvedeva·R. Chistov
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Abstract

We report the first observation of the decay \bar{B0} -> D_s^+ Lambda \bar{p} with a statistical significance of 6.6 sigma. We measure Br(\bar{B0} -> Ds+ Lambda \bar{p}) = (2.9 \pm 0.7\pm 0.5 \pm 0.4)* 10^{-5}, where the first error is statistical, the second is systematic and the third error comes fr\om the uncertainty in Br(Ds+ -> phi pi+). The data used for this analysis was accumulated at the Upsilon(4S) resonance, using the Belle detector at the KEKB asymmetric-energy e+e- collider. The integrated luminosity of the data sample is 414 fb-1, corresponding to 449*10^{6} B{\bar B} pairs.

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T. Medvedeva, R. Chistov. 2007-09-26. Observation of the Decay \bar{B0}-> Ds+ Lambda \bar{p}. https://doi.org/10.1103/physrevd.76.051102

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