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Abstract:

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)

Registro:

Documento: Artículo
Título:Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2851 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2851 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:759
Página de inicio:601
Página de fin:621
DOI: http://dx.doi.org/10.1016/j.physletb.2016.06.023
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v759_n_p601_Aad

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Citas:

---------- APA ----------
(2016) . Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 759, 601-621.
http://dx.doi.org/10.1016/j.physletb.2016.06.023
---------- CHICAGO ----------
Aad, G. "Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 759 (2016) : 601-621.
http://dx.doi.org/10.1016/j.physletb.2016.06.023
---------- MLA ----------
Aad, G. "Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 759, 2016, pp. 601-621.
http://dx.doi.org/10.1016/j.physletb.2016.06.023
---------- VANCOUVER ----------
Aad, G. Measurement of W ± and Z-boson production cross sections in pp collisions at √s=13 TeV with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2016;759:601-621.
http://dx.doi.org/10.1016/j.physletb.2016.06.023