Observation of the baryonic B-decay B-bar--> Lambda c+p-barK- pi +
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Aubert-2009-Observation of the b.pdf
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Author(s)
Dujmic, Denis
Henderson, Shawn Wesley
Sciolla, Gabriella
Yamamoto, R. K.
Zhao, M.
Fisher, Peter H
Cowan, Ray F
Spitznagel, Michael A
Alternative Title
Observation of the baryonic B-decay B̅ 0→Λc+p̅ K-π+
Date Issued
September 2009
Journal
Physical Review D
Publisher
American Physical Society
Citation
BABAR Collaboration et al. “Observation of the baryonic B-decay B-bar--> Lambda c+p-barK- pi +.” Physical Review D 80.5 (2009): 051105. © 2009 The American Physical Society.
Version
Final published version
Abstract
We report the observation of the baryonic B-decay B̅ 0-->Lambda c+p̅ K-pi+, excluding contributions from the decay B̅ 0-->Lambda c+Lambda K-. Using a data sample of 467×106 BB̅ pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is (4.33±0.82stat±0.33syst±1.13Λc+)×10-5. In addition we find evidence for the resonant decay B̅ 0-->Sigma c(2455)++p̅ K- and determine its branching fraction to be (1.11±0.30stat±0.09syst±0.29Λc+)×10-5. The errors are statistical, systematic, and due to the uncertainty in the Λc+ branching fraction. For the resonant decay B̅ 0-->Lambda c+p̅ K̅ *0 we obtain an upper limit of 2.42×10-5 at 90% confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.80.051105
