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Observation of B0bar->Lambda_c+pbar decay

High Energy Physics - Experiment 2008-11-26 v2
Authors: N. Gabyshev , H. Kichimi
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Abstract

We report the measurement of the charmed baryonic decay B0bar->Lambda_c+pbar with a branching fraction of (2.19^{+0.56}_{-0.49}+-0.32+-0.57)x10^{-5} and a statistical significance of 5.8 sigma. The errors are statistical, systematic, and the error of the Lambda_c+ ->pK-pi+ decay branching fraction. This is the first observation of a two-body baryonic B decay. The analysis is based on 78.2 fb-1 of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e+e- collider.

Keywords

branching fraction belle experiment charmless b decays

Cite

@article{arxiv.hep-ex/0212052,
  title  = {Observation of B0bar->Lambda_c+pbar decay},
  author = {N. Gabyshev and H. Kichimi},
  journal= {arXiv preprint arXiv:hep-ex/0212052},
  year   = {2008}
}

Comments

11 pages, 2 figures, submitted to Phys. Rev. Lett

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