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Abstract:

Abstract: Various differential cross-sections are measured in top-quark pair (tt) events produced in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the LHC with the ATLAS detector. These differential cross-sections are presented in a data set corresponding to an integrated luminosity of 4.6 fb −1 . The differential cross-sections are presented in terms of kinematic variables, such as momentum, rapidity and invariant mass, of a top-quark proxy referred to as the pseudo-top-quark as well as the pseudo-top-quark pair system. The dependence of the measurement on theoretical models is minimal. The measurements are performed on tt events in the lepton+jets channel, requiring exactly one charged lepton and at least four jets with at least two of them tagged as originating from a b-quark. The hadronic and leptonic pseudo-top-quarks are defined via the leptonic or hadronic decay mode of the W boson produced by the top-quark decay in events with a single charged lepton. Differential cross-section measurements of the pseudo-top-quark variables are compared with several Monte Carlo models that implement next-to-leading order or leading-order multi-leg matrix-element calculations. © 2015, The Author(s).

Registro:

Documento: Artículo
Título:Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at √s = 7 TeV in the ATLAS detector
Autor:The ATLAS collaboration et al.
Este artículo contiene 2880 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2880 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Hadron-Hadron Scattering; Top physics
Año:2015
Volumen:2015
Número:6
DOI: http://dx.doi.org/10.1007/JHEP06(2015)100
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n6_p_TheATLAScollaboration

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Citas:

---------- APA ----------
(2015) . Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at √s = 7 TeV in the ATLAS detector. Journal of High Energy Physics, 2015(6).
http://dx.doi.org/10.1007/JHEP06(2015)100
---------- CHICAGO ----------
The ATLAS collaboration. "Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at √s = 7 TeV in the ATLAS detector" . Journal of High Energy Physics 2015, no. 6 (2015).
http://dx.doi.org/10.1007/JHEP06(2015)100
---------- MLA ----------
The ATLAS collaboration. "Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at √s = 7 TeV in the ATLAS detector" . Journal of High Energy Physics, vol. 2015, no. 6, 2015.
http://dx.doi.org/10.1007/JHEP06(2015)100
---------- VANCOUVER ----------
The ATLAS collaboration. Differential top-antitop cross-section measurements as a function of observables constructed from final-state particles using pp collisions at √s = 7 TeV in the ATLAS detector. J. High Energy Phys. 2015;2015(6).
http://dx.doi.org/10.1007/JHEP06(2015)100