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Title

Search for W Boson decays to three charged pions

AuthorsBrochero Cifuentes, J. A. ; Cabrillo, I. J. ; Calderon, Alicia ; Chazin Quero, B.; Duarte Campderros, J. ; Fernández, M. ; Fernández Manteca, P. J.; García Alonso, A.; Gómez, G. ; Martínez-Rivero, Celso ; Martínez Ruiz del Arbol, P. ; Matorras, Francisco ; Piedra, Jonatan ; Prieels, C.; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Russo, L.; Scodellaro, Luca ; Trevisani, N. ; Vila, Iván ; Vizán, J.
Issue Date19-Apr-2019
PublisherAmerican Physical Society
CitationPhysical Review Letters 122(15): 151802 (2019)
AbstractFor the first time, a search for the rare decay of the W boson to three charged pions has been performed. Proton-proton collision data recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 77.3 fb-1, have been analyzed. No significant excess is observed above the background expectation. An upper limit of 1.01×10-6 is set at 95% confidence level on the branching fraction of the W boson to three charged pions. This provides a strong motivation for theoretical calculations of this branching fraction.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.122.151802
URIhttp://hdl.handle.net/10261/213728
DOIhttp://dx.doi.org/10.1103/PhysRevLett.122.151802
Identifiersdoi: 10.1103/PhysRevLett.122.151802
e-issn: 1079-7114
issn: 0031-9007
Appears in Collections:(IFCA) Artículos
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