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http://hdl.handle.net/2445/131759
Title: | Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK− |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 11-Oct-2011 |
Publisher: | American Physical Society |
Abstract: | We report the observation of the baryonic B decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − with a significance larger than 7 standard deviations based on 471 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − to be ( 3.8 ± 0.8 stat ± 0.2 sys ± 1.0 Λ + c ) × 10 − 5 . The uncertainties are statistical, systematic, and due to the uncertainty in the Λ + c branching fraction. We find that the Λ + c K − invariant-mass distribution shows an enhancement above 3.5 GeV / c 2 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.84.071102 |
It is part of: | Physical Review D, 2011, vol. 84, num. 7, p. 071102 |
URI: | http://hdl.handle.net/2445/131759 |
Related resource: | https://doi.org/10.1103/PhysRevD.84.071102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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