Artículo

Measurement of the W W + W Z cross section and limits on anomalous triple gauge couplings using final states with one lepton, missing transverse momentum, and two jets with the ATLAS detector at s√=7s=7 TeV

Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdel Khalek, S. ; Abdinov, O. ; Aben, R. ; Alconada Verzini, María Josefina Icon; Alonso, Francisco Icon; Anduaga, Xabier Sebastian Icon; Arduh, Francisco Anuar Icon; Dova, Maria Teresa Icon; Monticelli, Fernando Gabriel Icon; Wahlberg, Hernan Pablo Icon; Otero y Garzon, Gustavo Javier Icon; Piegaia, Ricardo Nestor Icon; Reisin, Hernan Diego Icon; Sacerdoti, Sabrina Icon; Zieminska, D. ; Zimine, N. I. ; Zimmermann, C. ; Zimmermann, R. ; Zimmermann, S. ; Zimmermann, S. ; Zinonos, Z. ; Ziolkowski, M. ; Zobernig, G. ; Zoccoli, A. ; Nedden, M. zur ; Zurzolo, G. ; Zwalinski, L. ; The ATLAS Collaboration

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Fecha

01/2015

Editorial

Springer

Revista

Journal of High Energy Physics

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ISSN

1126-6708

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Inglés

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Clasificación temática

Resumen

The production of a W boson decaying to eν or μν in association with a W or Z boson decaying to two jets is studied using 4.6 fb−1 of proton-proton collision data at s√=7 TeV recorded with the ATLAS detector at the LHC. The combined WW + WZ cross section is measured with a significance of 3.4σ and is found to be 68±7 (stat.)±19 (syst.) pb, in agreement with the Standard Model expectation of 61.1±2.2 pb. The distribution of the transverse momentum of the dijet system is used to set limits on anomalous contributions to the triple gauge coupling vertices and on parameters of an effective-field-theory model.

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