Using single top rapidity to measure V-td, V-ts, V-tb at hadron colliders
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
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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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 |
format |
article |
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 |
eu_rights_str_mv |
openAccess |
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) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132340012711936 |