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Abstract:

A measurement of the production cross-section for top quark pairs (tt-) in pp collisions at s=7TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb -1 , two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σtt-=187±11(stat.)-17+18(syst.)±6(lumi.)pb and σtt-=173±17(stat.)-16+18(syst.)±6(lumi.)pb respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter. © 2012 CERN.

Registro:

Documento: Artículo
Título:Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel
Autor:Aad, G. et al.
Este artículo contiene 3005 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 3005 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Cross-section; High-energy collider experiment; Top physics
Año:2012
Volumen:711
Número:3-4
Página de inicio:244
Página de fin:263
DOI: http://dx.doi.org/10.1016/j.physletb.2012.03.083
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_v711_n3-4_p244_Aad

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Citas:

---------- APA ----------
(2012) . Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 711(3-4), 244-263.
http://dx.doi.org/10.1016/j.physletb.2012.03.083
---------- CHICAGO ----------
Aad, G. "Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 711, no. 3-4 (2012) : 244-263.
http://dx.doi.org/10.1016/j.physletb.2012.03.083
---------- MLA ----------
Aad, G. "Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 711, no. 3-4, 2012, pp. 244-263.
http://dx.doi.org/10.1016/j.physletb.2012.03.083
---------- VANCOUVER ----------
Aad, G. Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2012;711(3-4):244-263.
http://dx.doi.org/10.1016/j.physletb.2012.03.083