Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC

Autores
Anduaga, Xabier Sebastián; Dova, María Teresa; Monticelli, Fernando Gabriel; Tripiana, Martín F.; The ATLAS Collaboration
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
By using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in the collisions of lead ions at the Large Hadron Collider. In a sample of lead-lead events with a pernucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconstructed in fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies of dijets in opposite hemispheres are observed to become systematically more unbalanced with increasing event centrality leading to a large number of events which contain highly asymmetric dijets. This is the first observation of an enhancement of events with such large dijet asymmetries, not observed in proton-proton collisions, which may point to an interpretation in terms of strong jet energy loss in a hot, dense medium.
La lista completa de autores que integran The ATLAS Collaboration puede consultarse en el enlace externo.
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
observaciones
Física
detector ATLAS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/72549
Acceder
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network_name_str SEDICI (UNLP)
spelling Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHCAnduaga, Xabier SebastiánDova, María TeresaMonticelli, Fernando GabrielTripiana, Martín F.The ATLAS CollaborationCiencias ExactasobservacionesFísicadetector ATLASBy using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in the collisions of lead ions at the Large Hadron Collider. In a sample of lead-lead events with a pernucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconstructed in fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies of dijets in opposite hemispheres are observed to become systematically more unbalanced with increasing event centrality leading to a large number of events which contain highly asymmetric dijets. This is the first observation of an enhancement of events with such large dijet asymmetries, not observed in proton-proton collisions, which may point to an interpretation in terms of strong jet energy loss in a hot, dense medium.La lista completa de autores que integran The ATLAS Collaboration puede consultarse en el enlace externo.Facultad de Ciencias Exactas2010-12-13info: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/10915/72549enginfo:eu-repo/semantics/altIdentifier/issn/0031-9007info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.105.252303info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:03:55Zoai:sedici.unlp.edu.ar:10915/72549Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:03:55.945SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
title Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
spellingShingle Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
Anduaga, Xabier Sebastián
Ciencias Exactas
observaciones
Física
detector ATLAS
title_short Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
title_full Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
title_fullStr Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
title_full_unstemmed Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
title_sort Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s<sub>NN</sub> = 2.76 TeV with the ATLAS Detector at the LHC
dc.creator.none.fl_str_mv Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author Anduaga, Xabier Sebastián
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author_role author
author2 Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
The ATLAS Collaboration
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
observaciones
Física
detector ATLAS
topic Ciencias Exactas
observaciones
Física
detector ATLAS
dc.description.none.fl_txt_mv By using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in the collisions of lead ions at the Large Hadron Collider. In a sample of lead-lead events with a pernucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconstructed in fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies of dijets in opposite hemispheres are observed to become systematically more unbalanced with increasing event centrality leading to a large number of events which contain highly asymmetric dijets. This is the first observation of an enhancement of events with such large dijet asymmetries, not observed in proton-proton collisions, which may point to an interpretation in terms of strong jet energy loss in a hot, dense medium.
La lista completa de autores que integran The ATLAS Collaboration puede consultarse en el enlace externo.
Facultad de Ciencias Exactas
description By using the ATLAS detector, observations have been made of a centrality-dependent dijet asymmetry in the collisions of lead ions at the Large Hadron Collider. In a sample of lead-lead events with a pernucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconstructed in fine-grained, longitudinally segmented electromagnetic and hadronic calorimeters. The transverse energies of dijets in opposite hemispheres are observed to become systematically more unbalanced with increasing event centrality leading to a large number of events which contain highly asymmetric dijets. This is the first observation of an enhancement of events with such large dijet asymmetries, not observed in proton-proton collisions, which may point to an interpretation in terms of strong jet energy loss in a hot, dense medium.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-13
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/10915/72549
url http://sedici.unlp.edu.ar/handle/10915/72549
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0031-9007
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.105.252303
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
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 13.22299

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