. (2011) Observation of the baryonic B decay B[over ¯]^{0}→Λ_{c}^{+}Λ[over ¯]K^{-}. Physical Review D, Vol.84 (No.7). Article: 071102. ISSN 0556-2821

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Abstract

We report the observation of the baryonic B decay (B) over bar (0) -> Lambda(+)(c)Lambda K(-) with a significance larger than 7 standard deviations based on 471 x 10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay (B) over bar (0) -> Lambda(+)(c)Lambda K(-) to be (3.8 +/- 0.8(stat) +/- 0.2(sys) +/- 1.0(Lambda c)(+)) x 10(-5). The uncertainties are statistical, systematic, and due to the uncertainty in the Lambda(+)(c) branching fraction. We find that the Lambda(+)(c)K(-) invariant-mass distribution shows an enhancement above 3.5 GeV/c(2).

Item Type:	Journal Article
Alternative Title:	Observation of the baryonic B decay (B)over-bar(0) -> Lambda(+)(c)(Lambda)over-barK(-)
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Physical Review D
Publisher:	American Physical Society
ISSN:	0556-2821
Official Date:	11 October 2011
Volume:	Vol.84
Number:	No.7
Page Range:	Article: 071102
Identification Number:	10.1103/PhysRevD.84.071102
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	SLAC, DOE (USA), NSF (USA), NSERC (Canada), CEA (France), CNRS (France), IN2P3, BMBF (Germany), DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MES (Russia), MICIIN (Spain), Science and Technology Facilities Council (Great Britain) (STFC), European Union, A. P. Sloan Foundation (USA), Binational Science Foundation (USA-Israel)
Grant number:	IN2P3 (CNRS)
URI:	http://wrap.warwick.ac.uk/id/eprint/39856

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