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2012-01-12

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/130847

Search for ¯B → Λ+cXℓ−¯νℓ decays in events with a fully reconstructed B meson

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https://doi.org/10.1103/PhysRevD.85.011102

Abstract

We present a search for semileptonic B decays to the charmed baryon Λ + c based on 420     fb − 1 of data collected at the Υ ( 4 S ) 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 B 0 mixing. We obtain a 90% confidence level upper limit of B ( ¯¯¯ B → Λ + c X ℓ − ¯ ν ℓ ) / B ( ¯¯¯ B → Λ + c X ) < 3.5 % .

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Física de partícules, Experiments, Mesons (Física nuclear), Barions

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Particle physics, Experiments, Mesons (Nuclear physics), Baryons

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Search for ¯B → Λ+cXℓ−¯νℓ decays in events with a fully reconstructed B meson. Physical Review D. 2012. Vol. 85, num. 1, pags. 011102(R). ISSN 1550-7998. [consulted: 9 of June of 2026]. Available at: https://hdl.handle.net/2445/130847

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