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Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector
Measurements of the Drell-Yan production of W and Z/gamma* bosons at the LHC provide a benchmark of our understanding of perturbative QCD and probe the proton structure in a unique way. The measurements are compared to state-of-the-art calculations at NNLO in QCD. New 7 TeV measurements are performe...
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Lenguaje: | eng |
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2016
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Acceso en línea: | http://cds.cern.ch/record/2211765 |
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author | Camarda, Stefano |
author_facet | Camarda, Stefano |
author_sort | Camarda, Stefano |
collection | CERN |
description | Measurements of the Drell-Yan production of W and Z/gamma* bosons at the LHC provide a benchmark of our understanding of perturbative QCD and probe the proton structure in a unique way. The measurements are compared to state-of-the-art calculations at NNLO in QCD. New 7 TeV measurements are performed for W and Z/gamma* bosons integrated and as a function of lepton rapidity and boson mass. Unprecedented precision is reached and strong constraints on parton distribution functions are found. First precise inclusive measurements of W and Z production at 13 TeV are presented. W/Z and W charge ratios profit from a cancellation of experimental uncertainties. The collaboration has also performed a measurement of ratios of the cross sections for the production of single Z bosons and top-quark pairs at various center-of-mass energies which exploit differences in the range of the probed parton momenta. The angular distributions of the Drell-Yan lepton pairs around the Z-boson mass peak probe the underlying QCD dynamic of the Z-boson production. We present a measurement of the complete set of the corresponding angular coefficients in 8 TeV data and compare to different theoretical approaches of QCD and EWK modeling. We also present recent measurements in the di-lepton mass range up to the TeV scale in 8 TeV data, double-differentially in dilepton mass and rapidity. The measurements constrain in particular the photon content of the proton. |
id | cern-2211765 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2016 |
record_format | invenio |
spelling | cern-22117652019-09-30T06:29:59Zhttp://cds.cern.ch/record/2211765engCamarda, StefanoPrecision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detectorParticle Physics - ExperimentMeasurements of the Drell-Yan production of W and Z/gamma* bosons at the LHC provide a benchmark of our understanding of perturbative QCD and probe the proton structure in a unique way. The measurements are compared to state-of-the-art calculations at NNLO in QCD. New 7 TeV measurements are performed for W and Z/gamma* bosons integrated and as a function of lepton rapidity and boson mass. Unprecedented precision is reached and strong constraints on parton distribution functions are found. First precise inclusive measurements of W and Z production at 13 TeV are presented. W/Z and W charge ratios profit from a cancellation of experimental uncertainties. The collaboration has also performed a measurement of ratios of the cross sections for the production of single Z bosons and top-quark pairs at various center-of-mass energies which exploit differences in the range of the probed parton momenta. The angular distributions of the Drell-Yan lepton pairs around the Z-boson mass peak probe the underlying QCD dynamic of the Z-boson production. We present a measurement of the complete set of the corresponding angular coefficients in 8 TeV data and compare to different theoretical approaches of QCD and EWK modeling. We also present recent measurements in the di-lepton mass range up to the TeV scale in 8 TeV data, double-differentially in dilepton mass and rapidity. The measurements constrain in particular the photon content of the proton.ATL-PHYS-SLIDE-2016-553oai:cds.cern.ch:22117652016-08-31 |
spellingShingle | Particle Physics - Experiment Camarda, Stefano Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title | Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title_full | Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title_fullStr | Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title_full_unstemmed | Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title_short | Precision measurements of inclusive and differential Drell-Yan cross sections with the ATLAS detector |
title_sort | precision measurements of inclusive and differential drell-yan cross sections with the atlas detector |
topic | Particle Physics - Experiment |
url | http://cds.cern.ch/record/2211765 |
work_keys_str_mv | AT camardastefano precisionmeasurementsofinclusiveanddifferentialdrellyancrosssectionswiththeatlasdetector |