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Abstract:

A measurement of the ZZ production cross section in proton-proton collisions at √s=7TeV using data corresponding to an integrated luminosity of 1.02fb - 1 recorded by the ATLAS experiment at the LHC is presented. Twelve events containing two Z boson candidates decaying to electrons and/or muons are observed, with an expected background of 0.3±0.3(stat)- 0.3+0.4(syst) events. The cross section measured in a phase-space region with good detector acceptance and for dilepton masses within the range 66 to 116 GeV is σZZ→" + " - " + " - fid=19.4-5.2+6.3(stat)-0.7+0. 9(syst)±0.7(lumi)fb. The resulting total cross section for on-shell ZZ production, σZZtot=8.5-2.3+2.7(stat)-0.3+0.4(syst)±0.3(lumi)pb, is consistent with the standard model expectation of 6.5-0.2+0.3pb calculated at the next-to-leading order in QCD. Limits on anomalous neutral triple gauge boson couplings are derived. © 2012 CERN. Published by the American Physical Society under the terms of the < uri xlink:href="http://creativecommons. org/licenses/by/3.0/" > Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Registro:

Documento: Artículo
Título:Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at √s=7TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2991 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2991 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:ATLAS detectors; ATLAS experiment; Cross section; Dileptons; Gauge bosons; Gauge couplings; Integrated luminosity; Next-to-leading orders; Phase spaces; Production cross section; Proton proton collisions; The standard model; Total cross section; Z Bosons; Bosons; Couplings; Gages; High energy physics; Phase space methods; Tellurium compounds; Protons
Año:2012
Volumen:108
Número:4
DOI: http://dx.doi.org/10.1103/PhysRevLett.108.041804
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v108_n4_p_Aad

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Citas:

---------- APA ----------
(2012) . Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at √s=7TeV with the ATLAS detector. Physical Review Letters, 108(4).
http://dx.doi.org/10.1103/PhysRevLett.108.041804
---------- CHICAGO ----------
Aad, G. "Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at √s=7TeV with the ATLAS detector" . Physical Review Letters 108, no. 4 (2012).
http://dx.doi.org/10.1103/PhysRevLett.108.041804
---------- MLA ----------
Aad, G. "Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at √s=7TeV with the ATLAS detector" . Physical Review Letters, vol. 108, no. 4, 2012.
http://dx.doi.org/10.1103/PhysRevLett.108.041804
---------- VANCOUVER ----------
Aad, G. Measurement of the ZZ production cross section and limits on anomalous neutral triple gauge couplings in proton-proton collisions at √s=7TeV with the ATLAS detector. Phys Rev Lett. 2012;108(4).
http://dx.doi.org/10.1103/PhysRevLett.108.041804