Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using 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
- Fiducial cross-sections for t ̄t production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb−1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for t ̄t events with at least one additional b-jet is measured to be 950 ± 70 (stat.) +240−190 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) +15−10 (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton chan- nel (eμ,μμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of t ̄t production with two additional b-jets to t ̄t production with any two additional jets. All measurements are in good agreement with recent theory predictions.
Facultad de Ciencias Exactas - Materia
-
Ciencias Exactas
Física
top quark
b-jets
ATLAS detector - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/79709
Ver los metadatos del registro completo
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Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoArduh, Francisco AnuarDova, María TeresaMonticelli, Fernando GabrielWahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicatop quarkb-jetsATLAS detectorFiducial cross-sections for t ̄t production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb<sup>−1</sup> of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for t ̄t events with at least one additional b-jet is measured to be 950 ± 70 (stat.) <sup>+240</sup><sub>−190</sub> (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) <sup>+15</sup><sub>−10</sub> (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton chan- nel (eμ,μμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of t ̄t production with two additional b-jets to t ̄t production with any two additional jets. All measurements are in good agreement with recent theory predictions.Facultad de Ciencias Exactas2016-01-07info: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/10915/79709enginfo:eu-repo/semantics/altIdentifier/issn/1434-6052info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-015-3852-4info: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:UNLP2025-09-29T11:12:31Zoai:sedici.unlp.edu.ar:10915/79709Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:12:31.905SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
title |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
spellingShingle |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector Alconada Verzini, María Josefina Ciencias Exactas Física top quark b-jets ATLAS detector |
title_short |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
title_full |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
title_fullStr |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
title_full_unstemmed |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using the ATLAS detector |
title_sort |
Measurements of fiducial cross-sections for t ̄t production with one or two additional b-jets in pp collisions at √s = 8 TeV using 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 top quark b-jets ATLAS detector |
topic |
Ciencias Exactas Física top quark b-jets ATLAS detector |
dc.description.none.fl_txt_mv |
Fiducial cross-sections for t ̄t production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb<sup>−1</sup> of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for t ̄t events with at least one additional b-jet is measured to be 950 ± 70 (stat.) <sup>+240</sup><sub>−190</sub> (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) <sup>+15</sup><sub>−10</sub> (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton chan- nel (eμ,μμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of t ̄t production with two additional b-jets to t ̄t production with any two additional jets. All measurements are in good agreement with recent theory predictions. Facultad de Ciencias Exactas |
description |
Fiducial cross-sections for t ̄t production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb<sup>−1</sup> of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for t ̄t events with at least one additional b-jet is measured to be 950 ± 70 (stat.) <sup>+240</sup><sub>−190</sub> (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) <sup>+15</sup><sub>−10</sub> (syst.) fb in the eμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton chan- nel (eμ,μμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of t ̄t production with two additional b-jets to t ̄t production with any two additional jets. All measurements are in good agreement with recent theory predictions. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-07 |
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/10915/79709 |
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http://sedici.unlp.edu.ar/handle/10915/79709 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1434-6052 info:eu-repo/semantics/altIdentifier/doi/10.1140/epjc/s10052-015-3852-4 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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