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Abstract:

This paper presents measurements of W±Z production in pp collisions at a center-of-mass energy of 8 TeV. The gauge bosons are reconstructed using their leptonic decay modes into electrons and muons. The data were collected in 2012 by the ATLAS experiment at the Large Hadron Collider and correspond to an integrated luminosity of 20.3 fb-1. The measured inclusive cross section in the detector fiducial region is σW±Z→ ′ν=35.1±0.9(stat)±0.8(sys)±0.8(lumi) fb, for one leptonic decay channel. In comparison, the next-to-leading-order Standard Model expectation is 30.0±2.1 fb. Cross sections for W+Z and W-Z production and their ratio are presented as well as differential cross sections for several kinematic observables. Limits on anomalous triple gauge boson couplings are derived from the transverse mass spectrum of the W±Z system. From the analysis of events with a W and a Z boson associated with two or more forward jets an upper limit at 95% confidence level on the W±Z scattering cross section of 0.63 fb, for each leptonic decay channel, is established, while the Standard Model prediction at next-to-leading order is 0.13±0.01 fb. Limits on anomalous quartic gauge boson couplings are also extracted. © 2016 CERN.

Registro:

Documento: Artículo
Título:Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings
Autor:Aad, G. et al.
Este artículo contiene 2863 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2863 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:93
Número:9
DOI: http://dx.doi.org/10.1103/PhysRevD.93.092004
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v93_n9_p_Aad

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Citas:

---------- APA ----------
(2016) . Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings. Physical Review D - Particles, Fields, Gravitation and Cosmology, 93(9).
http://dx.doi.org/10.1103/PhysRevD.93.092004
---------- CHICAGO ----------
Aad, G. "Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings" . Physical Review D - Particles, Fields, Gravitation and Cosmology 93, no. 9 (2016).
http://dx.doi.org/10.1103/PhysRevD.93.092004
---------- MLA ----------
Aad, G. "Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 93, no. 9, 2016.
http://dx.doi.org/10.1103/PhysRevD.93.092004
---------- VANCOUVER ----------
Aad, G. Measurements of W±Z production cross sections in pp collisions at s =8 TeV with the ATLAS detector and limits on anomalous gauge boson self-couplings. Phys Rev D Part Fields Gravit Cosmol. 2016;93(9).
http://dx.doi.org/10.1103/PhysRevD.93.092004