Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector

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

Detalhes bibliográficos
Autores: Aad, G., ATLAS Collaboration, Barreiro Alonso, Fernando, Cantero, J., De la Torre, H., Peso Malagón, José del, Labarga Echeverría, Luis Alfonso, Glasman Kuguel, Claudia Beatriz, Llorente Merino, J., Lagouri, T., March, Luis, Nebot, Eduardo, Terrón Cuadrado, Juan
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/669072
Acesso em linha:http://hdl.handle.net/10486/669072
https://dx.doi.org/10.1016/j.physletb.2012.05.022
Access Level:acceso abierto
Palavra-chave:FCNC
Heavy-quark production
Single top quark
Top physics
Física
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spelling Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detectorAad, G.ATLAS CollaborationBarreiro Alonso, FernandoCantero, J.De la Torre, H.Peso Malagón, José delLabarga Echeverría, Luis AlfonsoGlasman Kuguel, Claudia BeatrizLlorente Merino, J.Lagouri, T.March, LuisNebot, EduardoTerrón Cuadrado, JuanFCNCHeavy-quark productionSingle top quarkTop physicsFísicaArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMA search for the production of single top-quarks via flavour-changing neutral-currents is presented. Data collected with the ATLAS detector at a centre-of-mass energy of √s = 7 TeV, corresponding to an integrated luminosity of 2.05 fb−1, are used. Candidate events with a semileptonic top-quark decay signature are classified as signal- or background-like events by using several kinematic variables as input to a neural network. No signal is observed in the neural network output distribution and a Bayesian upper limit is placed on the production cross-section. The observed upper limit at 95% confidence level on the cross-section multiplied by the t → W b branching fraction is measured to be σqg→t × B(t → W b) < 3.9 pb. This upper limit is converted using a model-independent approach into upper limits on the coupling strengths κugt/Λ < 6.9 · 10−3 TeV−1 and κcgt/Λ < 1.6 · 10−2 TeV−1, where Λ is the new physics scale, and on the branching fractions B(t → ug) < 5.7 · 10−5 and B(t → cg) < 2.7 · 10−4We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United StatesCERNElsevierDepartamento de Física TeóricaFacultad de Ciencias20122012-06-12research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/669072https://dx.doi.org/10.1016/j.physletb.2012.05.022reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Framework Programme Seven 246806open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6690722026-06-23T12:46:27Z
dc.title.none.fl_str_mv Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
title Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
spellingShingle Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
Aad, G.
FCNC
Heavy-quark production
Single top quark
Top physics
Física
title_short Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
title_full Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
title_fullStr Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
title_full_unstemmed Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
title_sort Search for FCNC single top-quark production at √s=7 TeV with the ATLAS detector
dc.creator.none.fl_str_mv Aad, G.
ATLAS Collaboration
Barreiro Alonso, Fernando
Cantero, J.
De la Torre, H.
Peso Malagón, José del
Labarga Echeverría, Luis Alfonso
Glasman Kuguel, Claudia Beatriz
Llorente Merino, J.
Lagouri, T.
March, Luis
Nebot, Eduardo
Terrón Cuadrado, Juan
author Aad, G.
author_facet Aad, G.
ATLAS Collaboration
Barreiro Alonso, Fernando
Cantero, J.
De la Torre, H.
Peso Malagón, José del
Labarga Echeverría, Luis Alfonso
Glasman Kuguel, Claudia Beatriz
Llorente Merino, J.
Lagouri, T.
March, Luis
Nebot, Eduardo
Terrón Cuadrado, Juan
author_role author
author2 ATLAS Collaboration
Barreiro Alonso, Fernando
Cantero, J.
De la Torre, H.
Peso Malagón, José del
Labarga Echeverría, Luis Alfonso
Glasman Kuguel, Claudia Beatriz
Llorente Merino, J.
Lagouri, T.
March, Luis
Nebot, Eduardo
Terrón Cuadrado, Juan
author2_role author
author
author
author
author
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 FCNC
Heavy-quark production
Single top quark
Top physics
Física
topic FCNC
Heavy-quark production
Single top quark
Top physics
Física
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-06-12
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/10486/669072
https://dx.doi.org/10.1016/j.physletb.2012.05.022
url http://hdl.handle.net/10486/669072
https://dx.doi.org/10.1016/j.physletb.2012.05.022
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 Framework Programme Seven 246806
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 CERN
Elsevier
publisher.none.fl_str_mv CERN
Elsevier
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
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score 15,301629

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