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http://hdl.handle.net/2445/131738
Title: | Observation of the decay ¯¯¯B0→Λ+c¯pπ0 |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 25-Aug-2010 |
Publisher: | American Physical Society |
Abstract: | In a sample of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II collider at SLAC we have observed the decay ¯¯¯ B 0 → Λ + c ¯ p π 0 and measured the branching fraction to be ( 1.94 ± 0.17 ± 0.14 ± 0.50 ) × 10 − 4 , where the uncertainties are statistical, systematic, and the uncertainty on the Λ + c → p K − π + branching fraction, respectively. We determine an upper limit of 1.5 × 10 − 6 at 90% C.L. for the product branching fraction B ( ¯¯¯ B 0 → Σ + c ( 2455 ) ¯ p ) × B ( Λ + c → p K − π + ) . Furthermore, we observe an enhancement at the threshold of the invariant mass of the baryon-antibaryon pair. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.82.031102 |
It is part of: | Physical Review D, 2010, vol. 82, num. 3, p. 031102 |
URI: | http://hdl.handle.net/2445/131738 |
Related resource: | https://doi.org/10.1103/PhysRevD.82.031102 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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