Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s NN =2.76 Tev with the ATLAS detector at the LHC
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 per-nucleon center of mass energy of 2.76 TeV, selected with a minimum bias trigger, jets are reconst...
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todo:paper_00319007_v105_n25_p_Multitudinario2023-10-03T14:42:09Z Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s NN =2.76 Tev with the ATLAS detector at the LHC Multitudinario:3039 Atomic physics Physics ATLAS detectors Center-of-mass energies Electromagnetic and hadronic calorimeters Fine grained Large Hadron Collider Lead collisions Proton proton collisions Transverse energy Energy dissipation 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 per-nucleon 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.© 2010 CERN, for the ATLAS Collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v105_n25_p_Multitudinario |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Atomic physics Physics ATLAS detectors Center-of-mass energies Electromagnetic and hadronic calorimeters Fine grained Large Hadron Collider Lead collisions Proton proton collisions Transverse energy Energy dissipation |
spellingShingle |
Atomic physics Physics ATLAS detectors Center-of-mass energies Electromagnetic and hadronic calorimeters Fine grained Large Hadron Collider Lead collisions Proton proton collisions Transverse energy Energy dissipation Multitudinario:3039 Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s NN =2.76 Tev with the ATLAS detector at the LHC |
topic_facet |
Atomic physics Physics ATLAS detectors Center-of-mass energies Electromagnetic and hadronic calorimeters Fine grained Large Hadron Collider Lead collisions Proton proton collisions Transverse energy Energy dissipation |
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 per-nucleon 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.© 2010 CERN, for the ATLAS Collaboration. |
format |
JOUR |
author |
Multitudinario:3039 |
author_facet |
Multitudinario:3039 |
author_sort |
Multitudinario:3039 |
title |
Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s NN =2.76 Tev with the ATLAS detector at the LHC |
title_short |
Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √s NN =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 NN =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 NN =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 NN =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 nn =2.76 tev with the atlas detector at the lhc |
url |
http://hdl.handle.net/20.500.12110/paper_00319007_v105_n25_p_Multitudinario |
work_keys_str_mv |
AT multitudinario3039 observationofacentralitydependentdijetasymmetryinleadleadcollisionsatsnn276tevwiththeatlasdetectoratthelhc |
_version_ |
1782029382439665664 |