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Search for B̅ →Λc+Xℓ-ν̅ ℓ decays in events with a fully reconstructed B meson

BABAR Collaboration; Lees, J P; Poireau, V; Tisserand, V; Snoek, H L; et al (2012). Search for B̅ →Λc+Xℓ-ν̅ ℓ decays in events with a fully reconstructed B meson. Physical Review D (Particles, Fields, Gravitation and Cosmology), 85(1):011102.

Abstract

We present a search for semileptonic B decays to the charmed baryon Λc+ based on 420  fb-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(B̅ →Λc+Xℓ-ν̅ ℓ)/B(B̅ →Λc+X)<3.5%.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Nuclear and High Energy Physics
Physical Sciences > Physics and Astronomy (miscellaneous)
Language:English
Date:2012
Deposited On:14 Mar 2013 07:53
Last Modified:08 Jun 2025 01:39
Publisher:American Physical Society
ISSN:1550-2368
OA Status:Hybrid
Publisher DOI:https://doi.org/10.1103/PhysRevD.85.011102

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