Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC

Autores
Alvarez, Ezequiel; Szewc, Manuel
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
CMS has recently reported [A. M. Sirunyan (CMS Collaboration), Search for pair production of second-generation leptoquarks at s=13 TeV, Phys. Rev. D 99, 032014 (2019).] a moderate excess in the μνjj final state in a second-generation leptoquark search, but they have disregarded it because the excess is not present in the μμjj final state and because they do not observe the expected resonant peak in the distributions. As a proof of concept, we show that a simple leptoquark model including second- and third-generation couplings with non-negligible single- and nonresonant production in addition to usual pair production could explain the data - excess (μνjj), lack of excess (μμjj), and missing peak in the distributions - while being in agreement with collider constraints. We take this result and analysis as a starting point of a reconsideration of the ATLAS and CMS second-generation leptoquark searches. We also discuss which consequences and modifications should be performed in the searches to test if this deviation would correspond to a new physics signal. We observe that low-energy flavor constraints can be avoided by adding heavier particles to the model.
Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
LEPTOQUARK
LHC
MUON
B-PHYSICS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/128994

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spelling Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHCAlvarez, EzequielSzewc, ManuelLEPTOQUARKLHCMUONB-PHYSICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1CMS has recently reported [A. M. Sirunyan (CMS Collaboration), Search for pair production of second-generation leptoquarks at s=13 TeV, Phys. Rev. D 99, 032014 (2019).] a moderate excess in the μνjj final state in a second-generation leptoquark search, but they have disregarded it because the excess is not present in the μμjj final state and because they do not observe the expected resonant peak in the distributions. As a proof of concept, we show that a simple leptoquark model including second- and third-generation couplings with non-negligible single- and nonresonant production in addition to usual pair production could explain the data - excess (μνjj), lack of excess (μμjj), and missing peak in the distributions - while being in agreement with collider constraints. We take this result and analysis as a starting point of a reconsideration of the ATLAS and CMS second-generation leptoquark searches. We also discuss which consequences and modifications should be performed in the searches to test if this deviation would correspond to a new physics signal. We observe that low-energy flavor constraints can be avoided by adding heavier particles to the model.Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Physical Society2019-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/128994Alvarez, Ezequiel; Szewc, Manuel; Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 99; 095004; 5-2019; 1-152470-00102470-0029CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevD.99.095004info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.99.095004info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1811.05944info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:02Zoai:ri.conicet.gov.ar:11336/128994instacron: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 10:00:02.337CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
title Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
spellingShingle Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
Alvarez, Ezequiel
LEPTOQUARK
LHC
MUON
B-PHYSICS
title_short Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
title_full Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
title_fullStr Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
title_full_unstemmed Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
title_sort Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC
dc.creator.none.fl_str_mv Alvarez, Ezequiel
Szewc, Manuel
author Alvarez, Ezequiel
author_facet Alvarez, Ezequiel
Szewc, Manuel
author_role author
author2 Szewc, Manuel
author2_role author
dc.subject.none.fl_str_mv LEPTOQUARK
LHC
MUON
B-PHYSICS
topic LEPTOQUARK
LHC
MUON
B-PHYSICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv CMS has recently reported [A. M. Sirunyan (CMS Collaboration), Search for pair production of second-generation leptoquarks at s=13 TeV, Phys. Rev. D 99, 032014 (2019).] a moderate excess in the μνjj final state in a second-generation leptoquark search, but they have disregarded it because the excess is not present in the μμjj final state and because they do not observe the expected resonant peak in the distributions. As a proof of concept, we show that a simple leptoquark model including second- and third-generation couplings with non-negligible single- and nonresonant production in addition to usual pair production could explain the data - excess (μνjj), lack of excess (μμjj), and missing peak in the distributions - while being in agreement with collider constraints. We take this result and analysis as a starting point of a reconsideration of the ATLAS and CMS second-generation leptoquark searches. We also discuss which consequences and modifications should be performed in the searches to test if this deviation would correspond to a new physics signal. We observe that low-energy flavor constraints can be avoided by adding heavier particles to the model.
Fil: Alvarez, Ezequiel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Szewc, Manuel. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología. Centro Internacional de Estudios Avanzados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description CMS has recently reported [A. M. Sirunyan (CMS Collaboration), Search for pair production of second-generation leptoquarks at s=13 TeV, Phys. Rev. D 99, 032014 (2019).] a moderate excess in the μνjj final state in a second-generation leptoquark search, but they have disregarded it because the excess is not present in the μμjj final state and because they do not observe the expected resonant peak in the distributions. As a proof of concept, we show that a simple leptoquark model including second- and third-generation couplings with non-negligible single- and nonresonant production in addition to usual pair production could explain the data - excess (μνjj), lack of excess (μμjj), and missing peak in the distributions - while being in agreement with collider constraints. We take this result and analysis as a starting point of a reconsideration of the ATLAS and CMS second-generation leptoquark searches. We also discuss which consequences and modifications should be performed in the searches to test if this deviation would correspond to a new physics signal. We observe that low-energy flavor constraints can be avoided by adding heavier particles to the model.
publishDate 2019
dc.date.none.fl_str_mv 2019-05
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/11336/128994
Alvarez, Ezequiel; Szewc, Manuel; Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 99; 095004; 5-2019; 1-15
2470-0010
2470-0029
CONICET Digital
CONICET
url http://hdl.handle.net/11336/128994
identifier_str_mv Alvarez, Ezequiel; Szewc, Manuel; Nonresonant leptoquark with multigeneration couplings for μμjj and μνjj at the LHC; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 99; 095004; 5-2019; 1-15
2470-0010
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://link.aps.org/doi/10.1103/PhysRevD.99.095004
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.99.095004
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1811.05944
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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: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
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