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http://hdl.handle.net/2445/130847
Title: | Search for ¯B → Λ+cXℓ−¯νℓ decays in events with a fully reconstructed B meson |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Mesons (Física nuclear) Barions Particle physics Experiments Mesons (Nuclear physics) Baryons |
Issue Date: | 12-Jan-2012 |
Publisher: | American Physical Society |
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 % . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.85.011102 |
It is part of: | Physical Review D, 2012, vol. 85, num. 1, p. 011102(R) |
URI: | http://hdl.handle.net/2445/130847 |
Related resource: | https://doi.org/10.1103/PhysRevD.85.011102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
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