Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero

Detalhes bibliográficos
Autor(a) principal: Fabbrichesi, M.
Data de Publicação: 2014
Outros Autores: Pinamonti, M., Tonero, A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevD.89.074028
http://hdl.handle.net/11449/171528
Resumo: If the top quark is a composite state made out of some constituents, then its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic moment of the top quark and study their effect on the cross section for tt̄ production at the Tevatron and the LHC. Current measurements of the cross sections set a stringent limit on the scale of compositeness. This limit is comparable to similar limits obtained for light quarks and those from electroweak precision measurements. It can be used to constrain the parameter space of some composite Higgs models. © 2014 American Physical Society.
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spelling Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. toneroIf the top quark is a composite state made out of some constituents, then its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic moment of the top quark and study their effect on the cross section for tt̄ production at the Tevatron and the LHC. Current measurements of the cross sections set a stringent limit on the scale of compositeness. This limit is comparable to similar limits obtained for light quarks and those from electroweak precision measurements. It can be used to constrain the parameter space of some composite Higgs models. © 2014 American Physical Society.Sezione di Trieste, INFN, 34136 TriesteGruppo Collegato di Udine, Sezione di Trieste, SISSA, via Bonomea 265, 34136 TriesteICTP South American Institute for Fundamental Research, Instituto de Física Teórica, UNESP, Rua Dr. Bento T. Ferraz 271, 01140-070 São PauloICTP South American Institute for Fundamental Research, Instituto de Física Teórica, UNESP, Rua Dr. Bento T. Ferraz 271, 01140-070 São PauloSezione di Trieste, INFNGruppo Collegato di Udine, Sezione di Trieste, SISSAUniversidade Estadual Paulista (Unesp)Fabbrichesi, M.Pinamonti, M.Tonero, A. [UNESP]2018-12-11T16:55:43Z2018-12-11T16:55:43Z2014-04-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1103/PhysRevD.89.074028Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 89, n. 7, 2014.1550-23681550-7998http://hdl.handle.net/11449/17152810.1103/PhysRevD.89.0740282-s2.0-848986388392-s2.0-84898638839.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2024-01-03T06:23:12Zoai:repositorio.unesp.br:11449/171528Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:02:02.758380Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
title Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
spellingShingle Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
Fabbrichesi, M.
title_short Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
title_full Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
title_fullStr Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
title_full_unstemmed Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
title_sort Stringent limits on top-quark compositeness from t t ̄ production at the Tevatron and the lhc stringent limits on top-quark compositeness ⋯ M. fabbrichesi, M. pinamonti, and A. tonero
author Fabbrichesi, M.
author_facet Fabbrichesi, M.
Pinamonti, M.
Tonero, A. [UNESP]
author_role author
author2 Pinamonti, M.
Tonero, A. [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Sezione di Trieste, INFN
Gruppo Collegato di Udine, Sezione di Trieste, SISSA
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Fabbrichesi, M.
Pinamonti, M.
Tonero, A. [UNESP]
description If the top quark is a composite state made out of some constituents, then its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic moment of the top quark and study their effect on the cross section for tt̄ production at the Tevatron and the LHC. Current measurements of the cross sections set a stringent limit on the scale of compositeness. This limit is comparable to similar limits obtained for light quarks and those from electroweak precision measurements. It can be used to constrain the parameter space of some composite Higgs models. © 2014 American Physical Society.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-11
2018-12-11T16:55:43Z
2018-12-11T16:55:43Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1103/PhysRevD.89.074028
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 89, n. 7, 2014.
1550-2368
1550-7998
http://hdl.handle.net/11449/171528
10.1103/PhysRevD.89.074028
2-s2.0-84898638839
2-s2.0-84898638839.pdf
url http://dx.doi.org/10.1103/PhysRevD.89.074028
http://hdl.handle.net/11449/171528
identifier_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 89, n. 7, 2014.
1550-2368
1550-7998
10.1103/PhysRevD.89.074028
2-s2.0-84898638839
2-s2.0-84898638839.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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