Single top quark at future hadron colliders: Complete signal and background study
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.59.075001 http://hdl.handle.net/11449/65751 |
Resumo: | We perform a detailed theoretical study including decays and jet fragmentation of all the important modes of single top quark production and all the basic background processes at the upgraded Fermilab Tevatron and CERN LHC colliders. Special attention is paid to the complete tree level calculation of the QCD fake background which was not considered in previous studies. An analysis of the various kinematical distributions for the signal and backgrounds allow us to work out a set of cuts for an efficient background suppression and extraction of the signal. It is shown that the signal to background ratio after optimized cuts could reach about 0.4 at the Tevatron and 1 at the LHC. The remaining after cuts signal rate at the LHC for the lepton+jets signature is expected to be about 6.1 pb and will be enough to study single top quark physics even during LHC operation at a low luminosity. ©1999 The American Physical Society. |
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Single top quark at future hadron colliders: Complete signal and background studyWe perform a detailed theoretical study including decays and jet fragmentation of all the important modes of single top quark production and all the basic background processes at the upgraded Fermilab Tevatron and CERN LHC colliders. Special attention is paid to the complete tree level calculation of the QCD fake background which was not considered in previous studies. An analysis of the various kinematical distributions for the signal and backgrounds allow us to work out a set of cuts for an efficient background suppression and extraction of the signal. It is shown that the signal to background ratio after optimized cuts could reach about 0.4 at the Tevatron and 1 at the LHC. The remaining after cuts signal rate at the LHC for the lepton+jets signature is expected to be about 6.1 pb and will be enough to study single top quark physics even during LHC operation at a low luminosity. ©1999 The American Physical Society.Inst. de Fis. Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900 São PauloSkobeltsyn Inst. of Nuclear Physics Moscow State University, 119899 MoscowInst. de Fis. Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-900 São PauloUniversidade Estadual Paulista (Unesp)Moscow State UniversityBelyaev, A. S. [UNESP]Boos, E. E.Dudko, L. V.2014-05-27T11:19:43Z2014-05-27T11:19:43Z1999-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-9application/pdfhttp://dx.doi.org/10.1103/PhysRevD.59.075001Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 59, n. 7, p. 1-9, 1999.0556-2821http://hdl.handle.net/11449/6575110.1103/PhysRevD.59.075001WOS:0000794669000402-s2.0-166443794872-s2.0-16644379487.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D: Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2023-12-01T06:18:52Zoai:repositorio.unesp.br:11449/65751Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-01T06:18:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Single top quark at future hadron colliders: Complete signal and background study |
title |
Single top quark at future hadron colliders: Complete signal and background study |
spellingShingle |
Single top quark at future hadron colliders: Complete signal and background study Belyaev, A. S. [UNESP] |
title_short |
Single top quark at future hadron colliders: Complete signal and background study |
title_full |
Single top quark at future hadron colliders: Complete signal and background study |
title_fullStr |
Single top quark at future hadron colliders: Complete signal and background study |
title_full_unstemmed |
Single top quark at future hadron colliders: Complete signal and background study |
title_sort |
Single top quark at future hadron colliders: Complete signal and background study |
author |
Belyaev, A. S. [UNESP] |
author_facet |
Belyaev, A. S. [UNESP] Boos, E. E. Dudko, L. V. |
author_role |
author |
author2 |
Boos, E. E. Dudko, L. V. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Moscow State University |
dc.contributor.author.fl_str_mv |
Belyaev, A. S. [UNESP] Boos, E. E. Dudko, L. V. |
description |
We perform a detailed theoretical study including decays and jet fragmentation of all the important modes of single top quark production and all the basic background processes at the upgraded Fermilab Tevatron and CERN LHC colliders. Special attention is paid to the complete tree level calculation of the QCD fake background which was not considered in previous studies. An analysis of the various kinematical distributions for the signal and backgrounds allow us to work out a set of cuts for an efficient background suppression and extraction of the signal. It is shown that the signal to background ratio after optimized cuts could reach about 0.4 at the Tevatron and 1 at the LHC. The remaining after cuts signal rate at the LHC for the lepton+jets signature is expected to be about 6.1 pb and will be enough to study single top quark physics even during LHC operation at a low luminosity. ©1999 The American Physical Society. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-04-01 2014-05-27T11:19:43Z 2014-05-27T11:19:43Z |
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.59.075001 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 59, n. 7, p. 1-9, 1999. 0556-2821 http://hdl.handle.net/11449/65751 10.1103/PhysRevD.59.075001 WOS:000079466900040 2-s2.0-16644379487 2-s2.0-16644379487.pdf |
url |
http://dx.doi.org/10.1103/PhysRevD.59.075001 http://hdl.handle.net/11449/65751 |
identifier_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 59, n. 7, p. 1-9, 1999. 0556-2821 10.1103/PhysRevD.59.075001 WOS:000079466900040 2-s2.0-16644379487 2-s2.0-16644379487.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 |
1-9 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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1797789874806325248 |