Observation of the decay B̄0→Ds+Λp̄

We report the first observation of the decay B̄0→Ds+Λ p̄ with a statistical significance of 6.6σ. We measure B(B̄0→Ds+Λp̄)=(2.9±0.7±0.5±0.4) ×10-5, where the first error is statistical, the second is systematic, and the third error comes from the uncertainty in B(Ds+→π+). The data used for this analysis was accumulated at the Υ(4S) resonance, using the Belle detector at the KEKB asymmetric-energy e+e- collider. The integrated luminosity of the data sample is 414fb-1, corresponding to 449×106 BB̄ pairs. © 2007 The American Physical Society.


Published in:
Physical Review D - Particles, Fields, Gravitation and Cosmology, 76, 5, 051102
Year:
2007
Other identifiers:
Scopus: 2-s2.0-34548740863
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 Record created 2010-11-05, last modified 2018-05-17


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