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| Título: | Observation of the Λ0b→J/ψΛφdecay in proton-proton collisions at √s=13TeV |
Autor: | Cabrillo, I. J. CSIC ORCID ; Calderon, Alicia ; Chazin Quero, B. CSIC; Duarte Campderros, J. CSIC ORCID ; Fernández-García, Marcos CSIC ORCID ; Fernández Manteca, P. J. CSIC ORCID; García Alonso, A. CSIC ORCID; Gómez, Gervasio CSIC ORCID ; Martínez-Rivero, Celso CSIC ORCID ; Martínez Ruiz del Arbol, P. CSIC ORCID; Matorras, Francisco CSIC ORCID ; Piedra, Jonatan CSIC ORCID ; Prieels, C. CSIC; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Russo, L. CSIC ORCID; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vizán, J. CSIC ORCID | Fecha de publicación: | 2020 | Editor: | Elsevier | Citación: | Physics Letters B 802: 135203 (2020) | Resumen: | The observation of the Λb 0→J/ψΛϕ decay is reported using proton-proton collision data collected at √s = 13 TeV by the CMS experiment at the LHC in 2018, corresponding to an integrated luminosity of 60fb−1. The ratio of the branching fractions B(Λb 0→J/ψΛϕ)/B(Λb 0→ψ(2S)Λ) is measured to be (8.26±0.90(stat)±0.68(syst)±0.11(B))×10−2, where the first uncertainty is statistical, the second is systematic, and the last uncertainty reflects the uncertainties in the world-average branching fractions of ϕ and ψ(2S) decays to the reconstructed final states. | Descripción: | The CMS Collaboration: et al. | Versión del editor: | https://doi.org/10.1016/j.physletb.2020.135203 | URI: | http://hdl.handle.net/10261/229810 | DOI: | 10.1016/j.physletb.2020.135203 | ISSN: | 0370-2693 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| observat13tev.pdf | 767,65 kB | Adobe PDF |  Visualizar/Abrir |
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