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| Título: | Observation of the production of three massive gauge bosons at √s = 13 TeV |
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; Ricci-Tam, F. CSIC ORCID; 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: | American Physical Society | Citación: | Physical Review Letters 125(15): 151802 (2020) | Resumen: | The first observation is reported of the combined production of three massive gauge bosons (VVV with V=W, Z) in proton-proton collisions at a center-of-mass energy of 13 TeV. The analysis is based on a data sample recorded by the CMS experiment at the CERN LHC corresponding to an integrated luminosity of 137fb−1. The searches for individual WWW, WWZ, WZZ, and ZZZ production are performed in final states with three, four, five, and six leptons (electrons or muons), or with two same-sign leptons plus one or two jets. The observed (expected) significance of the combined VVV production signal is 5.7 (5.9) standard deviations and the corresponding measured cross section relative to the standard model prediction is 1.02+0.26−0.23. The significances of the individual WWW and WWZ production are 3.3 and 3.4 standard deviations, respectively. Measured production cross sections for the individual triboson processes are also reported. | Descripción: | CMS Collaboration: et al. | Versión del editor: | https://doi.org/10.1103/PhysRevLett.125.151802 | URI: | http://hdl.handle.net/10261/229817 | DOI: | 10.1103/PhysRevLett.125.151802 | ISSN: | 1079-7114 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| observagauge.pdf | 421,95 kB | Adobe PDF |  Visualizar/Abrir |
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