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http://hdl.handle.net/2445/186414| Title: | Observation of the Λb0→Λφ decay |
| Author: | Badalov, A. Garrido Beltrán, Lluís Gascón Fora, David Graciani Diaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, E. Rives, V. LHCb Collaboration |
| Keywords: | Hadrons Gran Col·lisionador d'Hadrons Física de partícules Experiments Hadrons Large Hadron Collider (France and Switzerland) Particle physics Experiments |
| Issue Date: | 2016 |
| Publisher: | Elsevier B.V. |
| Abstract: | The Λ0 b → Λφ decay is observed using data corresponding to an integrated luminosity of 3.0 fb−1 recorded by the LHCb experiment. The decay proceeds at leading order via a b → sss loop transition and is therefore sensitive to the possible presence of particles beyond the Standard Model. A first observation is reported with a significance of 5.9 standard deviations. The value of the branching fraction is measured to be (5.18 ± 1.04 ± 0.35 +0.67 −0.62) × 10−6, where the first uncertainty is statistical, the second is systematic, and the third is related to external inputs. Triple-product asymmetries are measured to be consistent with zero. |
| Note: | Reproducció del document publicat a: https://doi.org/10.1016/j.physletb.2016.05.077 |
| It is part of: | Physics Letters B, 2016, vol. 759, p. 282-292 |
| URI: | http://hdl.handle.net/2445/186414 |
| Related resource: | https://doi.org/10.1016/j.physletb.2016.05.077 |
| ISSN: | 0370-2693 |
| Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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| 669918.pdf | 1.04 MB | Adobe PDF | View/Open |
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