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

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...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
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
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v108_n4_p_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319007_v108_n4_p_Aad
record_format dspace
spelling todo:paper_00319007_v108_n4_p_Aad2023-10-03T14:42:19Z 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 Aad, G. 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 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v108_n4_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
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
topic_facet 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
description 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.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title 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
title_short 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
title_full 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
title_fullStr 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
title_full_unstemmed 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
title_sort 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
url http://hdl.handle.net/20.500.12110/paper_00319007_v108_n4_p_Aad
work_keys_str_mv AT aadg measurementofthezzproductioncrosssectionandlimitsonanomalousneutraltriplegaugecouplingsinprotonprotoncollisionsats7tevwiththeatlasdetector
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