Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector
- Autores
- Alconada Verzini, María Josefina; Alonso, Francisco; Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Simultaneous measurements of the tt¯, W+W-, and Z/γ*→ττ production cross-sections using an integrated luminosity of 4.6 fb-1 of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measured cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ*→ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯)=181.2±2.8+9.7-9.5±3.3±3.3 pb, σ(W+W-)=53.3±2.7+7.3-8.0±1.0±0.5 pb, and σ(Z/γ*→ττ)=1174±24+72-87±21±9 pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W+W- measurement includes the small contribution from Higgs boson decays, H→W+W-.
La lista completa de autores que integran el documento puede consultarse en el archivo.
Facultad de Ciencias Exactas
Instituto de Física La Plata - Materia
-
Ciencias Exactas
Física
proton-proton collisions
ATLAS detector - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/86837
Ver los metadatos del registro completo
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Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicaproton-proton collisionsATLAS detectorSimultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ*→ττ production cross-sections using an integrated luminosity of 4.6 fb<sup>-1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measured cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ*→ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯)=181.2±2.8<sup>+9.7</sup><sub>-9.5</sub>±3.3±3.3 pb, σ(W<sup>+</sup>W<sup>-</sup>)=53.3±2.7<sup>+7.3</sup><sub>-8.0</sub>±1.0±0.5 pb, and σ(Z/γ*→ττ)=1174±24<sup>+72</sup><sub>-87</sub>±21±9 pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W+W- measurement includes the small contribution from Higgs boson decays, H→W<sup>+</sup>W<sup>-</sup>.La lista completa de autores que integran el documento puede consultarse en el archivo.Facultad de Ciencias ExactasInstituto de Física La Plata2015info: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/10915/86837enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.91.052005info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:55Zoai:sedici.unlp.edu.ar:10915/86837Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:55.583SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
title |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
spellingShingle |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector Alconada Verzini, María Josefina Ciencias Exactas Física proton-proton collisions ATLAS detector |
title_short |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
title_full |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
title_fullStr |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
title_full_unstemmed |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
title_sort |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ* →ττ production cross-sections in pp collisions at √s = 7 TeV with the ATLAS detector |
dc.creator.none.fl_str_mv |
Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author |
Alconada Verzini, María Josefina |
author_facet |
Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author_role |
author |
author2 |
Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Wahlberg, Hernán Pablo The ATLAS Collaboration |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Física proton-proton collisions ATLAS detector |
topic |
Ciencias Exactas Física proton-proton collisions ATLAS detector |
dc.description.none.fl_txt_mv |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ*→ττ production cross-sections using an integrated luminosity of 4.6 fb<sup>-1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measured cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ*→ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯)=181.2±2.8<sup>+9.7</sup><sub>-9.5</sub>±3.3±3.3 pb, σ(W<sup>+</sup>W<sup>-</sup>)=53.3±2.7<sup>+7.3</sup><sub>-8.0</sub>±1.0±0.5 pb, and σ(Z/γ*→ττ)=1174±24<sup>+72</sup><sub>-87</sub>±21±9 pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W+W- measurement includes the small contribution from Higgs boson decays, H→W<sup>+</sup>W<sup>-</sup>. La lista completa de autores que integran el documento puede consultarse en el archivo. Facultad de Ciencias Exactas Instituto de Física La Plata |
description |
Simultaneous measurements of the tt¯, W<sup>+</sup>W<sup>-</sup>, and Z/γ*→ττ production cross-sections using an integrated luminosity of 4.6 fb<sup>-1</sup> of pp collisions at √s = 7 TeV collected by the ATLAS detector at the LHC are presented. Events are selected with two high transverse momentum leptons consisting of an oppositely charged electron and muon pair. The three processes are separated using the distributions of the missing transverse momentum of events with zero and greater than zero jet multiplicities. Measurements of the fiducial cross-section are presented along with results that quantify for the first time the underlying correlations in the predicted and measured cross-sections due to proton parton distribution functions. These results indicate that the correlated next-to-leading-order predictions for tt¯ and Z/γ*→ττ underestimate the data, while those at next-to-next-to-leading-order generally describe the data well. The full cross-sections are measured to be σ(tt¯)=181.2±2.8<sup>+9.7</sup><sub>-9.5</sub>±3.3±3.3 pb, σ(W<sup>+</sup>W<sup>-</sup>)=53.3±2.7<sup>+7.3</sup><sub>-8.0</sub>±1.0±0.5 pb, and σ(Z/γ*→ττ)=1174±24<sup>+72</sup><sub>-87</sub>±21±9 pb, where the cited uncertainties are due to statistics, systematic effects, luminosity and the LHC beam energy measurement, respectively. The W+W- measurement includes the small contribution from Higgs boson decays, H→W<sup>+</sup>W<sup>-</sup>. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 |
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 |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/86837 |
url |
http://sedici.unlp.edu.ar/handle/10915/86837 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1550-7998 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.91.052005 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/ Creative Commons Attribution 3.0 Unported (CC BY 3.0) |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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