Top-antitop resonance searches beyond 1 TeV

Autores
Alvarez, Ezequiel; Juan Ignacio Sanchez Vietto; Alejandro Szynkman
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We perform a general parton level analysis for the search of heavy resonant states in the production of tt pairs at the LHC with an integrated luminosity of 30 fb^-1. We assume the existence of resonances that only couple to quarks and propose kinematic cuts in order to increase the number of events produced through quark annihilation. We study the interplay between different variables and their impact on the purity of the selected sample. We focus on the longitudinal (beta) and transverse (pT) momenta of the tt pair and the scattering angle (theta) in the center of mass reference frame. We observe that beta is replaced by theta as a suitable discriminating variable of quark-annihilation processes for invariant masses above 1 TeV. Finally, we illustrate the analysis with a gluon resonance of 1.5 TeVand show the improvement in the sensitivity of the signal when cuts on theta are imposed.
Fil: Alvarez, Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Juan Ignacio Sanchez Vietto. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina;
Fil: Alejandro Szynkman. Universidad Nacional de la Plata. Facultad de Ciencias Exactas; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
Materia
TOP
GLUON
LHC
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/614
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/614
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Top-antitop resonance searches beyond 1 TeVAlvarez, EzequielJuan Ignacio Sanchez ViettoAlejandro SzynkmanTOPGLUONLHChttps://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3We perform a general parton level analysis for the search of heavy resonant states in the production of tt pairs at the LHC with an integrated luminosity of 30 fb^-1. We assume the existence of resonances that only couple to quarks and propose kinematic cuts in order to increase the number of events produced through quark annihilation. We study the interplay between different variables and their impact on the purity of the selected sample. We focus on the longitudinal (beta) and transverse (pT) momenta of the tt pair and the scattering angle (theta) in the center of mass reference frame. We observe that beta is replaced by theta as a suitable discriminating variable of quark-annihilation processes for invariant masses above 1 TeV. Finally, we illustrate the analysis with a gluon resonance of 1.5 TeVand show the improvement in the sensitivity of the signal when cuts on theta are imposed.Fil: Alvarez, Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;Fil: Juan Ignacio Sanchez Vietto. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina;Fil: Alejandro Szynkman. Universidad Nacional de la Plata. Facultad de Ciencias Exactas; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;Amer Physical Soc2013-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/614Alvarez, Ezequiel; Juan Ignacio Sanchez Vietto; Alejandro Szynkman; Top-antitop resonance searches beyond 1 TeV; Amer Physical Soc; Physical Review D; 3-2013; 1-11;1550-7998enginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:17:08Zoai:ri.conicet.gov.ar:11336/614instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:17:08.862CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Top-antitop resonance searches beyond 1 TeV
title Top-antitop resonance searches beyond 1 TeV
spellingShingle Top-antitop resonance searches beyond 1 TeV
Alvarez, Ezequiel
TOP
GLUON
LHC
title_short Top-antitop resonance searches beyond 1 TeV
title_full Top-antitop resonance searches beyond 1 TeV
title_fullStr Top-antitop resonance searches beyond 1 TeV
title_full_unstemmed Top-antitop resonance searches beyond 1 TeV
title_sort Top-antitop resonance searches beyond 1 TeV
dc.creator.none.fl_str_mv Alvarez, Ezequiel
Juan Ignacio Sanchez Vietto
Alejandro Szynkman
author Alvarez, Ezequiel
author_facet Alvarez, Ezequiel
Juan Ignacio Sanchez Vietto
Alejandro Szynkman
author_role author
author2 Juan Ignacio Sanchez Vietto
Alejandro Szynkman
author2_role author
author
dc.subject.none.fl_str_mv TOP
GLUON
LHC
topic TOP
GLUON
LHC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
dc.description.none.fl_txt_mv We perform a general parton level analysis for the search of heavy resonant states in the production of tt pairs at the LHC with an integrated luminosity of 30 fb^-1. We assume the existence of resonances that only couple to quarks and propose kinematic cuts in order to increase the number of events produced through quark annihilation. We study the interplay between different variables and their impact on the purity of the selected sample. We focus on the longitudinal (beta) and transverse (pT) momenta of the tt pair and the scattering angle (theta) in the center of mass reference frame. We observe that beta is replaced by theta as a suitable discriminating variable of quark-annihilation processes for invariant masses above 1 TeV. Finally, we illustrate the analysis with a gluon resonance of 1.5 TeVand show the improvement in the sensitivity of the signal when cuts on theta are imposed.
Fil: Alvarez, Ezequiel. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires; Argentina;
Fil: Juan Ignacio Sanchez Vietto. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales; Argentina;
Fil: Alejandro Szynkman. Universidad Nacional de la Plata. Facultad de Ciencias Exactas; Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - La Plata. Instituto de Fisica La Plata; Argentina;
description We perform a general parton level analysis for the search of heavy resonant states in the production of tt pairs at the LHC with an integrated luminosity of 30 fb^-1. We assume the existence of resonances that only couple to quarks and propose kinematic cuts in order to increase the number of events produced through quark annihilation. We study the interplay between different variables and their impact on the purity of the selected sample. We focus on the longitudinal (beta) and transverse (pT) momenta of the tt pair and the scattering angle (theta) in the center of mass reference frame. We observe that beta is replaced by theta as a suitable discriminating variable of quark-annihilation processes for invariant masses above 1 TeV. Finally, we illustrate the analysis with a gluon resonance of 1.5 TeVand show the improvement in the sensitivity of the signal when cuts on theta are imposed.
publishDate 2013
dc.date.none.fl_str_mv 2013-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/614
Alvarez, Ezequiel; Juan Ignacio Sanchez Vietto; Alejandro Szynkman; Top-antitop resonance searches beyond 1 TeV; Amer Physical Soc; Physical Review D; 3-2013; 1-11;
1550-7998
url http://hdl.handle.net/11336/614
identifier_str_mv Alvarez, Ezequiel; Juan Ignacio Sanchez Vietto; Alejandro Szynkman; Top-antitop resonance searches beyond 1 TeV; Amer Physical Soc; Physical Review D; 3-2013; 1-11;
1550-7998
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846083320110120960
score 13.22299

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