Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector
- Autores
- Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Hoya, Joaquín; Monticelli, Fernando Gabriel; Orellana, Gonzalo Enrique; Wahlberg, Hernán Pablo; The ATLAS Collaboration
- Año de publicación
- 2019
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49 nb−1. The W± bosons are reconstructed in the electron or muon leptonic decay channels. Production yields of leptonically decaying W± bosons, normalised by the total number of minimum-bias events and the nuclear thickness function, are measured within a fiducial region defined by the detector acceptance and the main kinematic requirements. These normalised yields are measured separately for W+ and W− bosons, and are presented as a function of the absolute value of pseudorapidity of the charged lepton and of the collision centrality. The lepton charge asymmetry is also measured as a function of the absolute value of lepton pseudorapidity. In addition, nuclear modification factors are calculated using the W± boson production cross-sections measured in pp collisions. The results are compared with predictions based on next-to-leading-order calculations with CT14 parton distribution functions as well as with predictions obtained with the EPPS16 and nCTEQ15 nuclear parton distribution functions. No dependence of normalised production yields on centrality and a good agreement with predictions are observed for midcentral and central collisions. For peripheral collisions, the data agree with predictions within 1.7 (0.9) standard deviations for W− (W+) bosons.
La lista completa de autores puede verse al final del archivo asociado.
Instituto de Física La Plata - Materia
-
Física
Particle physics
Physics
Lepton
Parton
Distribution function
Muon
Pseudorapidity
Boson
Impact parameter - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/125940
Ver los metadatos del registro completo
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Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detectorAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaHoya, JoaquínMonticelli, Fernando GabrielOrellana, Gonzalo EnriqueWahlberg, Hernán PabloThe ATLAS CollaborationFísicaParticle physicsPhysicsLeptonPartonDistribution functionMuonPseudorapidityBosonImpact parameterA measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49 nb−1. The W± bosons are reconstructed in the electron or muon leptonic decay channels. Production yields of leptonically decaying W± bosons, normalised by the total number of minimum-bias events and the nuclear thickness function, are measured within a fiducial region defined by the detector acceptance and the main kinematic requirements. These normalised yields are measured separately for W+ and W− bosons, and are presented as a function of the absolute value of pseudorapidity of the charged lepton and of the collision centrality. The lepton charge asymmetry is also measured as a function of the absolute value of lepton pseudorapidity. In addition, nuclear modification factors are calculated using the W± boson production cross-sections measured in pp collisions. The results are compared with predictions based on next-to-leading-order calculations with CT14 parton distribution functions as well as with predictions obtained with the EPPS16 and nCTEQ15 nuclear parton distribution functions. No dependence of normalised production yields on centrality and a good agreement with predictions are observed for midcentral and central collisions. For peripheral collisions, the data agree with predictions within 1.7 (0.9) standard deviations for W− (W+) bosons.La lista completa de autores puede verse al final del archivo asociado.Instituto de Física La Plata2019-11-18info: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/10915/125940enginfo:eu-repo/semantics/altIdentifier/issn/1434-6044info:eu-repo/semantics/altIdentifier/issn/1434-6052info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-019-7439-3info: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:UNLP2025-09-29T11:29:54Zoai:sedici.unlp.edu.ar:10915/125940Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:54.435SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
title |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
spellingShingle |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector Alonso, Francisco Física Particle physics Physics Lepton Parton Distribution function Muon Pseudorapidity Boson Impact parameter |
title_short |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
title_full |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
title_fullStr |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
title_full_unstemmed |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
title_sort |
Measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV with the ATLAS detector |
dc.creator.none.fl_str_mv |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration |
author |
Alonso, Francisco |
author_facet |
Alonso, Francisco Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration |
author_role |
author |
author2 |
Arduh, Francisco Anuar Dova, María Teresa Hoya, Joaquín Monticelli, Fernando Gabriel Orellana, Gonzalo Enrique Wahlberg, Hernán Pablo The ATLAS Collaboration |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Física Particle physics Physics Lepton Parton Distribution function Muon Pseudorapidity Boson Impact parameter |
topic |
Física Particle physics Physics Lepton Parton Distribution function Muon Pseudorapidity Boson Impact parameter |
dc.description.none.fl_txt_mv |
A measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49 nb−1. The W± bosons are reconstructed in the electron or muon leptonic decay channels. Production yields of leptonically decaying W± bosons, normalised by the total number of minimum-bias events and the nuclear thickness function, are measured within a fiducial region defined by the detector acceptance and the main kinematic requirements. These normalised yields are measured separately for W+ and W− bosons, and are presented as a function of the absolute value of pseudorapidity of the charged lepton and of the collision centrality. The lepton charge asymmetry is also measured as a function of the absolute value of lepton pseudorapidity. In addition, nuclear modification factors are calculated using the W± boson production cross-sections measured in pp collisions. The results are compared with predictions based on next-to-leading-order calculations with CT14 parton distribution functions as well as with predictions obtained with the EPPS16 and nCTEQ15 nuclear parton distribution functions. No dependence of normalised production yields on centrality and a good agreement with predictions are observed for midcentral and central collisions. For peripheral collisions, the data agree with predictions within 1.7 (0.9) standard deviations for W− (W+) bosons. La lista completa de autores puede verse al final del archivo asociado. Instituto de Física La Plata |
description |
A measurement of W± boson production in Pb+Pb collisions at √sNN = 5.02 TeV is reported using data recorded by the ATLAS experiment at the LHC in 2015, corresponding to a total integrated luminosity of 0.49 nb−1. The W± bosons are reconstructed in the electron or muon leptonic decay channels. Production yields of leptonically decaying W± bosons, normalised by the total number of minimum-bias events and the nuclear thickness function, are measured within a fiducial region defined by the detector acceptance and the main kinematic requirements. These normalised yields are measured separately for W+ and W− bosons, and are presented as a function of the absolute value of pseudorapidity of the charged lepton and of the collision centrality. The lepton charge asymmetry is also measured as a function of the absolute value of lepton pseudorapidity. In addition, nuclear modification factors are calculated using the W± boson production cross-sections measured in pp collisions. The results are compared with predictions based on next-to-leading-order calculations with CT14 parton distribution functions as well as with predictions obtained with the EPPS16 and nCTEQ15 nuclear parton distribution functions. No dependence of normalised production yields on centrality and a good agreement with predictions are observed for midcentral and central collisions. For peripheral collisions, the data agree with predictions within 1.7 (0.9) standard deviations for W− (W+) bosons. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-11-18 |
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 |
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http://sedici.unlp.edu.ar/handle/10915/125940 |
url |
http://sedici.unlp.edu.ar/handle/10915/125940 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1434-6044 info:eu-repo/semantics/altIdentifier/issn/1434-6052 info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-019-7439-3 |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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