Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO 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...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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2010
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| _version_ | 1797104719002337280 |
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| author | Aad, G Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adomeit, S Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S Ahles, F |
| author_facet | Aad, G Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adomeit, S Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S Ahles, F |
| author_sort | Aad, G |
| collection | OXFORD |
| 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. |
| first_indexed | 2024-03-07T06:37:32Z |
| format | Journal article |
| id | oxford-uuid:f8287b54-a0ab-4f9e-8810-28f3afa806d3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:37:32Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oxford-uuid:f8287b54-a0ab-4f9e-8810-28f3afa806d32022-03-27T12:48:25ZObservation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHCJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f8287b54-a0ab-4f9e-8810-28f3afa806d3EnglishSymplectic Elements at Oxford2010Aad, GAbbott, BAbdallah, JAbdelalim, AAbdesselam, AAbdinov, OAbi, BAbolins, MAbramowicz, HAbreu, HAcerbi, EAcharya, BAckers, MAdams, DAddy, TAdelman, JAderholz, MAdomeit, SAdragna, PAdye, TAefsky, SAguilar-Saavedra, JAharrouche, MAhlen, SAhles, FBy 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. |
| spellingShingle | Aad, G Abbott, B Abdallah, J Abdelalim, A Abdesselam, A Abdinov, O Abi, B Abolins, M Abramowicz, H Abreu, H Acerbi, E Acharya, B Ackers, M Adams, D Addy, T Adelman, J Aderholz, M Adomeit, S Adragna, P Adye, T Aefsky, S Aguilar-Saavedra, J Aharrouche, M Ahlen, S Ahles, F Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title_full | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title_fullStr | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title_full_unstemmed | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title_short | Observation of a centrality-dependent dijet asymmetry in lead-lead collisions at √sNN=2.76 Tev with the ATLASO detector at the LHC |
| title_sort | observation of a centrality dependent dijet asymmetry in lead lead collisions at √snn 2 76 tev with the atlaso detector at the lhc |
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