Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector

Measurements of the W ± →ℓ ± ν and Z→ℓ + ℓ − production cross sections (where ℓ ± =e ± ,μ ± ) in proton–proton collisions at s=13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb −1 . The total inclusi...

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Autor principal:	Aad, G.
Formato:	JOUR
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03702693_v759_n_p601_Aad
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_03702693_v759_n_p601_Aad
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spelling	todo:paper_03702693_v759_n_p601_Aad2023-10-03T15:29:48Z Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector Aad, G. Measurements of the W ± →ℓ ± ν and Z→ℓ + ℓ − production cross sections (where ℓ ± =e ± ,μ ± ) in proton–proton collisions at s=13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb −1 . The total inclusive W ± -boson production cross sections times the single-lepton-flavour branching ratios are σ W + tot =11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σ W − tot =8.79±0.02 (stat)±0.24 (sys)±0.18 (lumi) nb for W + and W − , respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66<m ℓℓ <116 GeV, is σ Z tot =1.981±0.007 (stat)±0.038 (sys)±0.042 (lumi) nb. The W + , W − , and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σ W + fid /σ W − fid =1.295±0.003 (stat)±0.010 (sys) and σ W ± fid /σ Z fid =10.31±0.04 (stat)±0.20 (sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements. © 2016 The Author(s) JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v759_n_p601_Aad
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description	Measurements of the W ± →ℓ ± ν and Z→ℓ + ℓ − production cross sections (where ℓ ± =e ± ,μ ± ) in proton–proton collisions at s=13 TeV are presented using data recorded by the ATLAS experiment at the Large Hadron Collider, corresponding to a total integrated luminosity of 81 pb −1 . The total inclusive W ± -boson production cross sections times the single-lepton-flavour branching ratios are σ W + tot =11.83±0.02 (stat)±0.32 (sys)±0.25 (lumi) nb and σ W − tot =8.79±0.02 (stat)±0.24 (sys)±0.18 (lumi) nb for W + and W − , respectively. The total inclusive Z-boson production cross section times leptonic branching ratio, within the invariant mass window 66<m ℓℓ <116 GeV, is σ Z tot =1.981±0.007 (stat)±0.038 (sys)±0.042 (lumi) nb. The W + , W − , and Z-boson production cross sections and cross-section ratios within a fiducial region defined by the detector acceptance are also measured. The cross-section ratios benefit from significant cancellation of experimental uncertainties, resulting in σ W + fid /σ W − fid =1.295±0.003 (stat)±0.010 (sys) and σ W ± fid /σ Z fid =10.31±0.04 (stat)±0.20 (sys). Theoretical predictions, based on calculations accurate to next-to-next-to-leading order for quantum chromodynamics and to next-to-leading order for electroweak processes and which employ different parton distribution function sets, are compared to these measurements. © 2016 The Author(s)
format	JOUR
author	Aad, G.
spellingShingle	Aad, G. Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
author_facet	Aad, G.
author_sort	Aad, G.
title	Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
title_short	Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
title_full	Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
title_fullStr	Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
title_full_unstemmed	Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
title_sort	measurement of w ± and z-boson production cross sections in pp collisions at √s=13 tev with the atlas detector
url	http://hdl.handle.net/20.500.12110/paper_03702693_v759_n_p601_Aad
work_keys_str_mv	AT aadg measurementofwandzbosonproductioncrosssectionsinppcollisionsats13tevwiththeatlasdetector
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Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector

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