Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector

Autores
Alconada Verzini, María Josefina; Alonso, Francisco; Arduh, Francisco Anuar; Dova, María Teresa; Monticelli, Fernando Gabriel; Wahlberg, Hernán Pablo; The ATLAS Collaboration
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Measurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb-1 of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b-jets. The numbers of additional jets for various jet transverse momentum (pT) thresholds, and the normalised differential cross-sections as a function of pT for the ve highest-pT additional jets, were measured in the jet pseudorapidity range |η| < 4.5. The gap fraction, the fraction of events which do not contain an additional jet in a central rapidity region, was measured for several rapidity intervals as a function of the minimum pT of a single jet or the scalar sum of pT of all additional jets. These fractions were also measured in different intervals of the invariant mass of the eμbb system. All measurements were corrected for detector effects, and found to be mostly well-described by predictions from next-to-leading-order and leading-order tt event generators with appropriate parameter choices. The results can be used to further optimise the parameters used in such generators.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/81687
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/81687
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicahadron-hadron scatteringla̵rge hadron collidertop quarkMeasurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb<sup>-1</sup> of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b-jets. The numbers of additional jets for various jet transverse momentum (p<sub>T</sub>) thresholds, and the normalised differential cross-sections as a function of p<sub>T</sub> for the ve highest-p<sub>T</sub> additional jets, were measured in the jet pseudorapidity range |η| < 4.5. The gap fraction, the fraction of events which do not contain an additional jet in a central rapidity region, was measured for several rapidity intervals as a function of the minimum p<sub>T</sub> of a single jet or the scalar sum of p<sub>T</sub> of all additional jets. These fractions were also measured in different intervals of the invariant mass of the eμbb system. All measurements were corrected for detector effects, and found to be mostly well-described by predictions from next-to-leading-order and leading-order tt event generators with appropriate parameter choices. The results can be used to further optimise the parameters used in such generators.Facultad de Ciencias Exactas2016-09-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/81687enginfo:eu-repo/semantics/altIdentifier/issn/1029-8479info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP09(2016)074info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:12Zoai:sedici.unlp.edu.ar:10915/81687Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:12.671SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
spellingShingle Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
Alconada Verzini, María Josefina
Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
title_short Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort Measurement of jet activity in top quark events using the eμ fi nal state with two b-tagged jets in pp collisions at √s = 8 TeV with the ATLAS detector
dc.creator.none.fl_str_mv Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author Alconada Verzini, María Josefina
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_role author
author2 Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
topic Ciencias Exactas
Física
hadron-hadron scattering
la̵rge hadron collider
top quark
dc.description.none.fl_txt_mv Measurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb<sup>-1</sup> of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b-jets. The numbers of additional jets for various jet transverse momentum (p<sub>T</sub>) thresholds, and the normalised differential cross-sections as a function of p<sub>T</sub> for the ve highest-p<sub>T</sub> additional jets, were measured in the jet pseudorapidity range |η| < 4.5. The gap fraction, the fraction of events which do not contain an additional jet in a central rapidity region, was measured for several rapidity intervals as a function of the minimum p<sub>T</sub> of a single jet or the scalar sum of p<sub>T</sub> of all additional jets. These fractions were also measured in different intervals of the invariant mass of the eμbb system. All measurements were corrected for detector effects, and found to be mostly well-described by predictions from next-to-leading-order and leading-order tt event generators with appropriate parameter choices. The results can be used to further optimise the parameters used in such generators.
Facultad de Ciencias Exactas
description Measurements of the jet activity in tt events produced in proton-proton collisions at √s = 8TeV are presented, using 20.3 fb<sup>-1</sup> of data collected by the ATLAS experiment at the Large Hadron Collider. The events were selected in the dilepton eμ decay channel with two identi ed b-jets. The numbers of additional jets for various jet transverse momentum (p<sub>T</sub>) thresholds, and the normalised differential cross-sections as a function of p<sub>T</sub> for the ve highest-p<sub>T</sub> additional jets, were measured in the jet pseudorapidity range |η| < 4.5. The gap fraction, the fraction of events which do not contain an additional jet in a central rapidity region, was measured for several rapidity intervals as a function of the minimum p<sub>T</sub> of a single jet or the scalar sum of p<sub>T</sub> of all additional jets. These fractions were also measured in different intervals of the invariant mass of the eμbb system. All measurements were corrected for detector effects, and found to be mostly well-described by predictions from next-to-leading-order and leading-order tt event generators with appropriate parameter choices. The results can be used to further optimise the parameters used in such generators.
publishDate 2016
dc.date.none.fl_str_mv 2016-09-13
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/81687
url http://sedici.unlp.edu.ar/handle/10915/81687
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1029-8479
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP09(2016)074
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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