Artículo
Measurement of the ZZ production cross section in proton-proton collisions at s√= 8 TeV using the ZZ→ℓ−ℓ+ℓ′−ℓ′+ and ZZ→ℓ−ℓ+νν¯ channels with the ATLAS detector
Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O; Bossio Sola, Jonathan David
; Marceca, Gino
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Sacerdoti, Sabrina
; Alconada Verzini, María Josefina
; Alonso, Francisco
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Hoya, Joaquín
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Zimine, N. I.; Zimmermann, C.; Zimmermann, S.; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Nedden, M. zur; Zurzolo, G.; Zwalinski, L.; The ATLAS Collaboration
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Fecha de publicación:
04/2017
Editorial:
Springer
Revista:
Journal of High Energy Physics
ISSN:
1029-8479
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A measurement of the ZZ production cross section in the ` − ` + ` 0 − ` 0 + and ` − ` + νν̄ channels (` = e, μ) in proton?proton collisions at s = 8 TeV at the Large Hadron Collider at CERN, using data corresponding to an integrated luminosity of 20.3 fb −1 collected by the ATLAS experiment in 2012 is presented. The fiducial cross sections for ZZ → ` − ` + ` 0 − ` 0 + and ZZ → ` − ` + νν̄ are measured in selected phase-space regions. The total cross section for ZZ events produced with both Z bosons in the mass range 66 to 116 GeV is measured from the combination of the two channels to be 7.3 ± 0.4 (stat) ± 0.3 (syst) +0.2 −0.1 (lumi) pb, which is consistent with the Standard Model prediction of 6.6 +0.7 pb. The differential cross sections in bins of various kinematic variables are presented. The differential event yield as a function of the transverse momentum of the leading Z boson is used to set limits on anomalous neutral triple gauge boson couplings in ZZ production.
Palabras clave:
Zz
,
Cross-Section
,
Atlas
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O; et al.; Measurement of the ZZ production cross section in proton-proton collisions at s√= 8 TeV using the ZZ→ℓ−ℓ+ℓ′−ℓ′+ and ZZ→ℓ−ℓ+νν¯ channels with the ATLAS detector; Springer; Journal of High Energy Physics; 99; 4-2017
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