Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector
- Autores
- Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A measurement of the top-antitop production charge asymmetry AC is presented using data corresponding to an integrated luminosity of 1.04 fb−1 of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t ̄t event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of AC is AC = −0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of AC = 0.006 ± 0.002. Measurements of AC in two ranges of invariant mass of the top-antitop pair are also shown.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
top quark
proton-proton collisions
ATLAS detector - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/79714
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Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detectorAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.Wahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicatop quarkproton-proton collisionsATLAS detectorA measurement of the top-antitop production charge asymmetry <i>A<sub>C</sub></i> is presented using data corresponding to an integrated luminosity of 1.04 fb<sup>−1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t ̄t event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of <i>A<sub>C</sub></i> is <i>A<sub>C</sub></i> = −0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of <i>A<sub>C</sub></i> = 0.006 ± 0.002. Measurements of <i>A<sub>C</sub></i> in two ranges of invariant mass of the top-antitop pair are also shown.Facultad de Ciencias Exactas2012-06-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/79714enginfo:eu-repo/semantics/altIdentifier/issn/1434-6052info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-012-2039-5info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:04:29Zoai:sedici.unlp.edu.ar:10915/79714Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:04:29.249SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| title |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| spellingShingle |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector Anduaga, Xabier Sebastián Ciencias Exactas Física top quark proton-proton collisions ATLAS detector |
| title_short |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| title_full |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| title_fullStr |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| title_full_unstemmed |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| title_sort |
Measurement of the charge asymmetry in top quark pair production in pp collisions at √s = 7 TeV using the ATLAS detector |
| dc.creator.none.fl_str_mv |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author |
Anduaga, Xabier Sebastián |
| author_facet |
Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_role |
author |
| author2 |
Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Física top quark proton-proton collisions ATLAS detector |
| topic |
Ciencias Exactas Física top quark proton-proton collisions ATLAS detector |
| dc.description.none.fl_txt_mv |
A measurement of the top-antitop production charge asymmetry <i>A<sub>C</sub></i> is presented using data corresponding to an integrated luminosity of 1.04 fb<sup>−1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t ̄t event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of <i>A<sub>C</sub></i> is <i>A<sub>C</sub></i> = −0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of <i>A<sub>C</sub></i> = 0.006 ± 0.002. Measurements of <i>A<sub>C</sub></i> in two ranges of invariant mass of the top-antitop pair are also shown. Facultad de Ciencias Exactas |
| description |
A measurement of the top-antitop production charge asymmetry <i>A<sub>C</sub></i> is presented using data corresponding to an integrated luminosity of 1.04 fb<sup>−1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC. Events are selected with a single lepton (electron or muon), missing transverse momentum and at least four jets of which at least one jet is identified as coming from a b-quark. A kinematic fit is used to reconstruct the t ̄t event topology. After background subtraction, a Bayesian unfolding procedure is performed to correct for acceptance and detector effects. The measured value of <i>A<sub>C</sub></i> is <i>A<sub>C</sub></i> = −0.019±0.028 (stat.)±0.024 (syst.), consistent with the prediction from the MC@NLO Monte Carlo generator of <i>A<sub>C</sub></i> = 0.006 ± 0.002. Measurements of <i>A<sub>C</sub></i> in two ranges of invariant mass of the top-antitop pair are also shown. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012-06-15 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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http://sedici.unlp.edu.ar/handle/10915/79714 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/1434-6052 info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-012-2039-5 |
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openAccess |
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