Search for B̄→Λ_c⁺Xℓ⁻ν̅_ℓ decays in Events with a Fully Reconstructed B Meson

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Search for B̄→Λ_c⁺Xℓ⁻ν̅_ℓ decays in Events with a Fully Reconstructed B Meson

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Title: Search for B̄→Λ_c⁺Xℓ⁻ν̅_ℓ decays in Events with a Fully Reconstructed B Meson
Author(s):
Lees, J. P.;
Poireau, V.;
Tisserand, V.;
Garra Tico, J.;
Grauges, E.;
Martinelli, M.;
Milanes, D. A.;
Izen, Joseph M.;
Lou, Xinchou;
BaBar Collaboration
Date Created: 2012-01-12
Format: Text
Item Type: Article
Keywords: Leptons (Nuclear physics)--Decay
B mesons--Decay
Abstract: We present a search for semileptonic B decays to the charmed baryon Λc+ based on 420fb -1 of data collected at the Υ(4S) resonance with the BABAR detector at the PEP-II e +e - storage rings. By fully reconstructing the recoiling B in a hadronic decay mode, we reduce non-B backgrounds and determine the flavor of the signal B. We statistically correct the flavor for the effect of the B0 mixing. We obtain a 90% confidence level upper limit of B(B̄→Λc+X -ν ̄)/B(B̄→Λc+X)<3.5%. © 2012 American Physical Society.
Publisher: American Physical Society
ISSN: 1550-7998
Source: Physical Review D - Particles, Fields, Gravitation and Cosmology
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevD.85.011102
Persistent Link: http://hdl.handle.net/10735.1/3083
Bibliographic Citation: Lees, J. P., V. Poireau, V. Tisserand, J. Garra Tico, et al. 2012. "Search for B̄→Λ_c⁺Xℓ⁻ν̅_ℓ decays in events with a fully reconstructed B meson." Physical Review D - Particles, Fields, Gravitation and Cosmology 85(1), doi:10.1103/PhysRevD.85.011102
Terms of Use: © 2012, American Physical Society

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