Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere

Detalhes bibliográficos
Autores: Aad, G., Álvarez Estévez, Manuel, Barreiro Alonso, Fernando, Glasman Kuguel, Claudia Beatriz, Terrón Cuadrado, Juan, Aguilar-Saavedra, J.A., ATLAS Collaboration, CMS Collaboration
Formato: artículo
Fecha de publicación:2020
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/708816
Acesso em linha:http://hdl.handle.net/10486/708816
https://dx.doi.org/10.1007/JHEP08(2020)051
Access Level:acceso abierto
Palavra-chave:Hadron-Hadron Scattering (Experiments)
Top Physics
Física
id ES_6886cf24b2a915ca773b94d3a9783db7
oai_identifier_str oai:repositorio.uam.es:10486/708816
network_acronym_str ES
network_name_str España
repository_id_str
spelling Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeVAad, G.Álvarez Estévez, ManuelBarreiro Alonso, FernandoGlasman Kuguel, Claudia BeatrizTerrón Cuadrado, JuanAguilar-Saavedra, J.A.ATLAS CollaborationCMS CollaborationHadron-Hadron Scattering (Experiments)Top PhysicsFísicaArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiereThe combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 8 TeV, and corresponding to an integrated luminosity of about 20 fb−1 for each experiment. The measurements used events containing one lepton and having different jet multiplicities in the final state. The results are quoted as fractions of W bosons with longitudinal (F0), left-handed (FL), or right-handed (FR) polarizations. The resulting combined measurements of the polarization fractions are F0 = 0.693 ± 0.014 and FL = 0.315 ± 0.011. The fraction FR is calculated from the unitarity constraint to be FR = −0.008 ± 0.007. These results are in agreement with the standard model predictions at next-to-next-to-leading order in perturbative quantum chromodynamics and represent an improvement in precision of 25 (29)% for F0 (FL) with respect to the most precise single measurement. A limit on anomalous right-handed vector (VR), and left- and right-handed tensor (gL, gR) tWb couplings is set while fixing all others to their standard model values. The allowed regions are [−0.11, 0.16] for VR, [−0.08, 0.05] for gL, and [−0.04, 0.02] for gR, at 95% confidence level. Limits on the corresponding Wilson coefficients are also derivedSpringerScuola Internazionale Superiore di Studi Avanzati (SISSA)Departamento de Física TeóricaFacultad de Ciencias20202020-08-12research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/708816https://dx.doi.org/10.1007/JHEP08(2020)051reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 675440European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 752730European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 754496European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 765710open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7088162026-06-23T12:46:27Z
dc.title.none.fl_str_mv Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
title Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
spellingShingle Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
Aad, G.
Hadron-Hadron Scattering (Experiments)
Top Physics
Física
title_short Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
title_full Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
title_fullStr Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
title_full_unstemmed Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
title_sort Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV
dc.creator.none.fl_str_mv Aad, G.
Álvarez Estévez, Manuel
Barreiro Alonso, Fernando
Glasman Kuguel, Claudia Beatriz
Terrón Cuadrado, Juan
Aguilar-Saavedra, J.A.
ATLAS Collaboration
CMS Collaboration
author Aad, G.
author_facet Aad, G.
Álvarez Estévez, Manuel
Barreiro Alonso, Fernando
Glasman Kuguel, Claudia Beatriz
Terrón Cuadrado, Juan
Aguilar-Saavedra, J.A.
ATLAS Collaboration
CMS Collaboration
author_role author
author2 Álvarez Estévez, Manuel
Barreiro Alonso, Fernando
Glasman Kuguel, Claudia Beatriz
Terrón Cuadrado, Juan
Aguilar-Saavedra, J.A.
ATLAS Collaboration
CMS Collaboration
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv Hadron-Hadron Scattering (Experiments)
Top Physics
Física
topic Hadron-Hadron Scattering (Experiments)
Top Physics
Física
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, los autores pertenecientes a la UAM y el nombre del grupo de colaboración, si lo hubiere
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-08-12
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/708816
https://dx.doi.org/10.1007/JHEP08(2020)051
url http://hdl.handle.net/10486/708816
https://dx.doi.org/10.1007/JHEP08(2020)051
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 675440
European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 752730
European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 754496
European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 765710
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
Scuola Internazionale Superiore di Studi Avanzati (SISSA)
publisher.none.fl_str_mv Springer
Scuola Internazionale Superiore di Studi Avanzati (SISSA)
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409966257864704
score 15,198674

Registos relacionados