Observation of the Λ0b→Λφdecay
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| Title: | Observation of the Λ0b→Λφdecay |
| Author: | LHCb Collaboration Adeva Andany, Bernardo Borsato, Martino Dosil Suárez, Álvaro Fernández Albor, Víctor Manuel Gallas Torreira, Abraham Antonio García Pardiñas, Julián Hernando Morata, José Ángel Lemos Cid, Edgar Lucio Martínez, Miriam Martínez Santos, Diego Plo Casasus, Máximo Prisciandaro, Jessica Ramos Pernas, Miguel Romero Vidal, Antonio Saborido Silva, Juan José Sanmartín Sedes, Brais Santamarina Ríos, Cibrán Vázquez Regueiro, Pablo Vázquez Sierra, Carlos Vieites Díaz, María |
| Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
| Date of Issue: | 2016 |
| Publisher: | Elsevier |
| Citation: | Cheung, S. F., Evans, T., Gandini, P., Gruberg Cazon, B. R., Hadavizadeh, T., Harnew, N., ... & Malde, S. S. (2016). Observation of the Λ0b→ Λφ decay. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 759, 282-292 |
| Abstract: | The Λ0b→Λφdecay is observed using data corresponding to an integrated luminosity of 3.0fb−1recorded by the LHCbexperiment. The decay proceeds at leading order via a b →sssloop transition and is therefore sensitive to the possible presence of particles beyond the Standard Model. A first observation is reported with a significance of 5.9standard 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. |
| Publisher version: | https://doi.org/10.1016/j.physletb.2016.05.077 |
| URI: | http://hdl.handle.net/10347/22432 |
| DOI: | 10.1016/j.physletb.2016.05.077 |
| ISSN: | 0370-2693 |
| E-ISSN: | 1873-2445 |
| Rights: | ©2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. |
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Except where otherwise noted, this item's license is described as ©2016 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.