tt¯bb¯ as a probe of new physics at the LHC
- Autores
- Alvarez, Ezequiel; Estevez, Mariel
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We study the ttbb final state at the LHC as a probe of new physics that couples mainly to the third generation of quarks. We analyze new physics simplified models with resonances of spin-0, -1 and -2. The sensitivity of the final states ttbb, tttt, bbbb and tt on each of these models is used to identify an important region in parameter space that is still not excluded and where ttbb is the most sensitive final state. We indicate possible experimental hints and discuss potential issues of observables that rely mainly on Monte Carlo predictions. A new observable is proposed that, at the price of requiring more statistics, reduces the impact of Monte Carlo predictions. We use preliminary 13 TeV results to give a raw estimate on the discovery reach and propose simple improvements on the observables.
Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina
Fil: Estevez, Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina - Materia
-
top
bottom
lhc
third generation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72563
Ver los metadatos del registro completo
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tt¯bb¯ as a probe of new physics at the LHCAlvarez, EzequielEstevez, Marieltopbottomlhcthird generationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the ttbb final state at the LHC as a probe of new physics that couples mainly to the third generation of quarks. We analyze new physics simplified models with resonances of spin-0, -1 and -2. The sensitivity of the final states ttbb, tttt, bbbb and tt on each of these models is used to identify an important region in parameter space that is still not excluded and where ttbb is the most sensitive final state. We indicate possible experimental hints and discuss potential issues of observables that rely mainly on Monte Carlo predictions. A new observable is proposed that, at the price of requiring more statistics, reduces the impact of Monte Carlo predictions. We use preliminary 13 TeV results to give a raw estimate on the discovery reach and propose simple improvements on the observables.Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; ArgentinaFil: Estevez, Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; ArgentinaAmerican Physical Society2017-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72563Alvarez, Ezequiel; Estevez, Mariel; tt¯bb¯ as a probe of new physics at the LHC; American Physical Society; Physical Review D; 96; 3; 8-2017; 1-280556-28212470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.035016info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.96.035016info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1701.04427info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:46:39Zoai:ri.conicet.gov.ar:11336/72563instacron: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:34982025-09-29 10:46:40.097CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
tt¯bb¯ as a probe of new physics at the LHC |
title |
tt¯bb¯ as a probe of new physics at the LHC |
spellingShingle |
tt¯bb¯ as a probe of new physics at the LHC Alvarez, Ezequiel top bottom lhc third generation |
title_short |
tt¯bb¯ as a probe of new physics at the LHC |
title_full |
tt¯bb¯ as a probe of new physics at the LHC |
title_fullStr |
tt¯bb¯ as a probe of new physics at the LHC |
title_full_unstemmed |
tt¯bb¯ as a probe of new physics at the LHC |
title_sort |
tt¯bb¯ as a probe of new physics at the LHC |
dc.creator.none.fl_str_mv |
Alvarez, Ezequiel Estevez, Mariel |
author |
Alvarez, Ezequiel |
author_facet |
Alvarez, Ezequiel Estevez, Mariel |
author_role |
author |
author2 |
Estevez, Mariel |
author2_role |
author |
dc.subject.none.fl_str_mv |
top bottom lhc third generation |
topic |
top bottom lhc third generation |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We study the ttbb final state at the LHC as a probe of new physics that couples mainly to the third generation of quarks. We analyze new physics simplified models with resonances of spin-0, -1 and -2. The sensitivity of the final states ttbb, tttt, bbbb and tt on each of these models is used to identify an important region in parameter space that is still not excluded and where ttbb is the most sensitive final state. We indicate possible experimental hints and discuss potential issues of observables that rely mainly on Monte Carlo predictions. A new observable is proposed that, at the price of requiring more statistics, reduces the impact of Monte Carlo predictions. We use preliminary 13 TeV results to give a raw estimate on the discovery reach and propose simple improvements on the observables. Fil: Alvarez, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina Fil: Estevez, Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina |
description |
We study the ttbb final state at the LHC as a probe of new physics that couples mainly to the third generation of quarks. We analyze new physics simplified models with resonances of spin-0, -1 and -2. The sensitivity of the final states ttbb, tttt, bbbb and tt on each of these models is used to identify an important region in parameter space that is still not excluded and where ttbb is the most sensitive final state. We indicate possible experimental hints and discuss potential issues of observables that rely mainly on Monte Carlo predictions. A new observable is proposed that, at the price of requiring more statistics, reduces the impact of Monte Carlo predictions. We use preliminary 13 TeV results to give a raw estimate on the discovery reach and propose simple improvements on the observables. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08 |
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/11336/72563 Alvarez, Ezequiel; Estevez, Mariel; tt¯bb¯ as a probe of new physics at the LHC; American Physical Society; Physical Review D; 96; 3; 8-2017; 1-28 0556-2821 2470-0029 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/72563 |
identifier_str_mv |
Alvarez, Ezequiel; Estevez, Mariel; tt¯bb¯ as a probe of new physics at the LHC; American Physical Society; Physical Review D; 96; 3; 8-2017; 1-28 0556-2821 2470-0029 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.035016 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.96.035016 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1701.04427 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
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https://creativecommons.org/licenses/by/2.5/ar/ |
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application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |