Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector
- Autores
- Alconada Verzini, María Josefina; Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Hoya, Joaquín; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This paper presents single lepton and dilepton kinematic distributions measured in dileptonic t ̄t events produced in 20.2 fb−1 of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge eμ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for lep- tons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of mpolet = 173.2±0.9±0.8±1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
leptons
top quark
Medición
proton-proton collisions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
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- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/79758
Ver los metadatos del registro completo
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Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaHoya, JoaquínMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicaleptonstop quarkMediciónproton-proton collisionsThis paper presents single lepton and dilepton kinematic distributions measured in dileptonic t ̄t events produced in 20.2 fb<sup>−1</sup> of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge eμ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for lep- tons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of m<sup>pole</sup><sub>t</sub> = 173.2±0.9±0.8±1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources.Facultad de Ciencias Exactas2017-11-25info: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/10915/79758enginfo:eu-repo/semantics/altIdentifier/issn/1434-6052info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-017-5349-9info: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:10915/79758Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:04:29.265SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| title |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| spellingShingle |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector Alconada Verzini, María Josefina Ciencias Exactas Física leptons top quark Medición proton-proton collisions |
| title_short |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_fullStr |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_full_unstemmed |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| title_sort |
Measurement of lepton differential distributions and the top quark mass in t ̄t production in pp collisions at √s = 8 TeV with the ATLAS detector |
| dc.creator.none.fl_str_mv |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author |
Alconada Verzini, María Josefina |
| author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author_role |
author |
| author2 |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
| author2_role |
author author author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Exactas Física leptons top quark Medición proton-proton collisions |
| topic |
Ciencias Exactas Física leptons top quark Medición proton-proton collisions |
| dc.description.none.fl_txt_mv |
This paper presents single lepton and dilepton kinematic distributions measured in dileptonic t ̄t events produced in 20.2 fb<sup>−1</sup> of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge eμ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for lep- tons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of m<sup>pole</sup><sub>t</sub> = 173.2±0.9±0.8±1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources. Facultad de Ciencias Exactas |
| description |
This paper presents single lepton and dilepton kinematic distributions measured in dileptonic t ̄t events produced in 20.2 fb<sup>−1</sup> of √s = 8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge eμ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for lep- tons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of m<sup>pole</sup><sub>t</sub> = 173.2±0.9±0.8±1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017-11-25 |
| 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/10915/79758 |
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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/s10052-017-5349-9 |
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openAccess |
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