Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector

Autores
Alconada Verzini, María Josefina; Alonso, Francisco; Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; Wahlberg, Hernán Pablo; The ATLAS Collaboration
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Measurements of the centrality and rapidity dependence of inclusive jet production in √sNN=5.02 TeV proton–lead (p +Pb) collisions and the jet cross-section in √s= 2.76 TeV proton–proton collisions are presented. These quantities are measured in datasets corresponding to an integrated luminosity of 27.8 nb−1 and 4.0 pb−1, respectively, recorded with the ATLAS detector at the Large Hadron Collider in 2013. The p+Pb collision centrality was characterised using the total transverse energy measured in the pseudorapidity interval −4.9 < η < −3.2 in the direction of the lead beam. Results are presented for the double-differential per-collision yields as a function of jet rapidity and transverse momentum (pT) for minimum-bias and centrality-selected p+Pb collisions, and are compared to the jet rate from the geometric expectation. The total jet yield in minimum-bias events is slightly enhanced above the expectation in a pT-dependent manner but is consistent with the expectation within uncertainties. The ratios of jet spectra from different centrality selections show a strong modification of jet production at all pT at forward rapidities and for large pT at mid-rapidity, which manifests as a suppression of the jet yield in central events and an enhancement in peripheral events. These effects imply that the factorisation between hard and soft processes is violated at an unexpected level in proton–nucleus collisions. Furthermore, the modifications at forward rapidities are found to be a function of the total jet energy only, implying that the violations may have a simple dependence on the hard parton–parton kinematics.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Física
Medición
proton-proton collisions
ATLAS detector
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:10915/79990

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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detectorAlconada Verzini, María JosefinaAlonso, FranciscoAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.Wahlberg, Hernán PabloThe ATLAS CollaborationCiencias ExactasFísicaMediciónproton-proton collisionsATLAS detectorMeasurements of the centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead (p +Pb) collisions and the jet cross-section in √s= 2.76 TeV proton–proton collisions are presented. These quantities are measured in datasets corresponding to an integrated luminosity of 27.8 nb<sup>−1</sup> and 4.0 pb<sup>−1</sup>, respectively, recorded with the ATLAS detector at the Large Hadron Collider in 2013. The p+Pb collision centrality was characterised using the total transverse energy measured in the pseudorapidity interval −4.9 < η < −3.2 in the direction of the lead beam. Results are presented for the double-differential per-collision yields as a function of jet rapidity and transverse momentum (p<sub>T</sub>) for minimum-bias and centrality-selected p+Pb collisions, and are compared to the jet rate from the geometric expectation. The total jet yield in minimum-bias events is slightly enhanced above the expectation in a p<sub>T</sub>-dependent manner but is consistent with the expectation within uncertainties. The ratios of jet spectra from different centrality selections show a strong modification of jet production at all p<sub>T</sub> at forward rapidities and for large p<sub>T</sub> at mid-rapidity, which manifests as a suppression of the jet yield in central events and an enhancement in peripheral events. These effects imply that the factorisation between hard and soft processes is violated at an unexpected level in proton–nucleus collisions. Furthermore, the modifications at forward rapidities are found to be a function of the total jet energy only, implying that the violations may have a simple dependence on the hard parton–parton kinematics.Facultad de Ciencias Exactas2015-07-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf392-413http://sedici.unlp.edu.ar/handle/10915/79990enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2015.07.023info: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:UNLP2025-09-29T11:11:54Zoai:sedici.unlp.edu.ar:10915/79990Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:11:54.886SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
title Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
spellingShingle Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
Alconada Verzini, María Josefina
Ciencias Exactas
Física
Medición
proton-proton collisions
ATLAS detector
title_short Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
title_full Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
title_fullStr Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
title_full_unstemmed Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
title_sort Centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead collisions with the ATLAS detector
dc.creator.none.fl_str_mv Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author Alconada Verzini, María Josefina
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_role author
author2 Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
Medición
proton-proton collisions
ATLAS detector
topic Ciencias Exactas
Física
Medición
proton-proton collisions
ATLAS detector
dc.description.none.fl_txt_mv Measurements of the centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead (p +Pb) collisions and the jet cross-section in √s= 2.76 TeV proton–proton collisions are presented. These quantities are measured in datasets corresponding to an integrated luminosity of 27.8 nb<sup>−1</sup> and 4.0 pb<sup>−1</sup>, respectively, recorded with the ATLAS detector at the Large Hadron Collider in 2013. The p+Pb collision centrality was characterised using the total transverse energy measured in the pseudorapidity interval −4.9 < η < −3.2 in the direction of the lead beam. Results are presented for the double-differential per-collision yields as a function of jet rapidity and transverse momentum (p<sub>T</sub>) for minimum-bias and centrality-selected p+Pb collisions, and are compared to the jet rate from the geometric expectation. The total jet yield in minimum-bias events is slightly enhanced above the expectation in a p<sub>T</sub>-dependent manner but is consistent with the expectation within uncertainties. The ratios of jet spectra from different centrality selections show a strong modification of jet production at all p<sub>T</sub> at forward rapidities and for large p<sub>T</sub> at mid-rapidity, which manifests as a suppression of the jet yield in central events and an enhancement in peripheral events. These effects imply that the factorisation between hard and soft processes is violated at an unexpected level in proton–nucleus collisions. Furthermore, the modifications at forward rapidities are found to be a function of the total jet energy only, implying that the violations may have a simple dependence on the hard parton–parton kinematics.
Facultad de Ciencias Exactas
description Measurements of the centrality and rapidity dependence of inclusive jet production in √s<sub>NN</sub>=5.02 TeV proton–lead (p +Pb) collisions and the jet cross-section in √s= 2.76 TeV proton–proton collisions are presented. These quantities are measured in datasets corresponding to an integrated luminosity of 27.8 nb<sup>−1</sup> and 4.0 pb<sup>−1</sup>, respectively, recorded with the ATLAS detector at the Large Hadron Collider in 2013. The p+Pb collision centrality was characterised using the total transverse energy measured in the pseudorapidity interval −4.9 < η < −3.2 in the direction of the lead beam. Results are presented for the double-differential per-collision yields as a function of jet rapidity and transverse momentum (p<sub>T</sub>) for minimum-bias and centrality-selected p+Pb collisions, and are compared to the jet rate from the geometric expectation. The total jet yield in minimum-bias events is slightly enhanced above the expectation in a p<sub>T</sub>-dependent manner but is consistent with the expectation within uncertainties. The ratios of jet spectra from different centrality selections show a strong modification of jet production at all p<sub>T</sub> at forward rapidities and for large p<sub>T</sub> at mid-rapidity, which manifests as a suppression of the jet yield in central events and an enhancement in peripheral events. These effects imply that the factorisation between hard and soft processes is violated at an unexpected level in proton–nucleus collisions. Furthermore, the modifications at forward rapidities are found to be a function of the total jet energy only, implying that the violations may have a simple dependence on the hard parton–parton kinematics.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-17
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/10915/79990
url http://sedici.unlp.edu.ar/handle/10915/79990
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0370-2693
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2015.07.023
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
392-413
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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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