Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders

Detalhes bibliográficos
Autor(a) principal: Aguilar-Saavedra, J. A.
Data de Publicação: 2011
Outros Autores: Onofre, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/54884
Resumo: Single top production processes are usually regarded as the ones in which V-tb can be directly measured at hadron colliders. We show that the analysis of the single top rapidity distribution in t-channel and tW production can also set direct limits on V-td. At LHC with 10 fb(-1) at 14 TeV, the combined limits on V-td may be reduced by almost a factor of 2 when the top rapidity distribution is used. This also implies that the limits on V-tb can also be reduced by 15%, since both parameters, as well as V-ts, must be simultaneously obtained from a global fit to data. At Tevatron, the exploitation of this distribution would require very high statistics.
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spelling Using single top rapidity to measure V-td, V-ts, V-tb at hadron collidersCiências Naturais::Ciências FísicasScience & TechnologySingle top production processes are usually regarded as the ones in which V-tb can be directly measured at hadron colliders. We show that the analysis of the single top rapidity distribution in t-channel and tW production can also set direct limits on V-td. At LHC with 10 fb(-1) at 14 TeV, the combined limits on V-td may be reduced by almost a factor of 2 when the top rapidity distribution is used. This also implies that the limits on V-tb can also be reduced by 15%, since both parameters, as well as V-ts, must be simultaneously obtained from a global fit to data. At Tevatron, the exploitation of this distribution would require very high statistics.We thank B. Casal and A. Ruiz for useful discussions and correspondence. This work has been partially supported by CRUP (Accao integrada Ref. E 2/09), FCT (Project. No. CERN/FP/83588/2008), MICINN (FPA2006-05294, FPA2010-17915, and HP2008-0039), Junta de Andalucia (FQM 101 and FQM 437), and by the European Community's Marie-Curie Research Training Network under Contract No. MRTN-CT-2006-035505 "Tools and Precision Calculations for Physics Discoveries at Colliders.'' The work of J. A. A. S. has been supported by a MICINN Ramon y Cajal contract.info:eu-repo/semantics/publishedVersionAmerican Physical SocietyUniversidade do MinhoAguilar-Saavedra, J. A.Onofre, A.20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/54884eng1550-799810.1103/PhysRevD.83.073003info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:05:04Zoai:repositorium.sdum.uminho.pt:1822/54884Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:55:27.118194Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
title Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
spellingShingle Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
Aguilar-Saavedra, J. A.
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
title_full Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
title_fullStr Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
title_full_unstemmed Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
title_sort Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
author Aguilar-Saavedra, J. A.
author_facet Aguilar-Saavedra, J. A.
Onofre, A.
author_role author
author2 Onofre, A.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Aguilar-Saavedra, J. A.
Onofre, A.
dc.subject.por.fl_str_mv Ciências Naturais::Ciências Físicas
Science & Technology
topic Ciências Naturais::Ciências Físicas
Science & Technology
description Single top production processes are usually regarded as the ones in which V-tb can be directly measured at hadron colliders. We show that the analysis of the single top rapidity distribution in t-channel and tW production can also set direct limits on V-td. At LHC with 10 fb(-1) at 14 TeV, the combined limits on V-td may be reduced by almost a factor of 2 when the top rapidity distribution is used. This also implies that the limits on V-tb can also be reduced by 15%, since both parameters, as well as V-ts, must be simultaneously obtained from a global fit to data. At Tevatron, the exploitation of this distribution would require very high statistics.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/54884
url http://hdl.handle.net/1822/54884
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1550-7998
10.1103/PhysRevD.83.073003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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