Evidence for the Baryonic Decay [bar over B][superscript 0] → D[superscript 0]Λ[bar over Λ]
Author(s)
Dujmic, Denis; Sciolla, Gabriella; Cowan, Ray F
DownloadLees-2014-Evidence for the baryonic.pdf (759.7Kb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Terms of use
Metadata
Show full item recordAbstract
Evidence is presented for the baryonic B meson decay [bar over B][superscript 0] → D[superscript 0]Λ[bar over Λ] based on a data sample of 471 × 10[superscript 6] B[bar over B] pairs collected with the BABAR detector at the PEP-II asymmetric e[superscript +]e[superscript −] collider located at the SLAC National Accelerator Laboratory. The branching fraction is determined to be B([bar over B][superscript 0] → D[superscript 0]Λ[bar over Λ]) = (9.8[+2.9 over −2.6] ± 1.9) × 10[superscript −6], corresponding to a significance of 3.4 standard deviations including additive systematic uncertainties. A search for the related baryonic B meson decay [bar over B][superscript 0] → D[superscript 0]Σ[superscript 0][bar over Λ] with Σ[superscript 0] → Λγ is performed and an upper limit B([bar over B][superscript 0] → D[superscript 0]Σ[superscript 0][bar over Λ] + [bar over B][superscript 0] → D[superscript 0]Λ[bar over Σ][superscript 0]) < 3.1 × 10[superscript −5] is determined at 90% confidence level.
Date issued
2014-06Department
Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P., V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, et al. “Evidence for the Baryonic Decay [bar over B][superscript 0] → D[superscript 0]Λ[bar over Λ].” Phys. Rev. D 89, no. 11 (June 2014). © 2014 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368