Observation of tW production in the single-lepton channel in pp collisions at √ s=13 TeV

Ver/Abrir
Identificadores
URI: http://hdl.handle.net/10902/24690
ISSN: 1126-6708
ISSN: 1029-8479
Compartir
Estadísticas
Ver Estadísticas
Google Scholar
Registro completo
Mostrar el registro completo DC
Autoría
Tumasyan, A.; Brochero Cifuentes, Javier AndrésAutoridad Unican; Cabrillo Bartolomé, José IbanAutoridad Unican; Calderón Tazón, AliciaAutoridad Unican; Duarte Campderros, JorgeAutoridad Unican; Fernández García, MarcosAutoridad Unican; Fernández Madrazo, CeliaAutoridad Unican; Fernández Manteca, Pedro JoséAutoridad Unican; García Alonso, Andrea; Gómez Gramuglio, GervasioAutoridad Unican; Martínez Rivero, Celso; Martínez Ruiz del Árbol, PabloAutoridad Unican; Matorras Weinig, FranciscoAutoridad Unican; Matorras Cuevas, PabloAutoridad Unican; Piedra Gómez, JonatanAutoridad Unican; Prieëls, Cedric; Rodrigo Anoro, TeresaAutoridad Unican; Ruiz Jimeno, AlbertoAutoridad Unican; Scodellaro, LucaAutoridad Unican; [et al.]
Fecha
2021-11-15
Derechos
Attribution 4.0 International © CERN, for the benefit of the CMS Collaboration.
Publicado en
Journal of High Energy Physics, 2021, 11, 111
Editorial
Springer Verlag
Enlace a la publicación
Palabras clave
Hadron-Hadron scattering (experiments)
Top physics
Resumen/Abstract
A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at √ s = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb−1 collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant t¯t background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 ± 4 (stat) ± 12 (syst) pb, consistent with the standard model.
Colecciones a las que pertenece
Attribution 4.0 International © CERN, for the benefit of the CMS Collaboration.Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution 4.0 International © CERN, for the benefit of the CMS Collaboration.