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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Publicado: 2016
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v759_n_p601_Aad
http://hdl.handle.net/20.500.12110/paper_03702693_v759_n_p601_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_03702693_v759_n_p601_Aad2023-06-08T15:37:26Z 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 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) 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v759_n_p601_Aad 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)
title Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
spellingShingle 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
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v759_n_p601_Aad
http://hdl.handle.net/20.500.12110/paper_03702693_v759_n_p601_Aad
_version_ 1768542414695301120

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