Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at √sNN=2.76 TeV with the ATLAS Detector at the LHC
2010-12-13 | journal article. A publication with affiliation to the University of Göttingen.
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Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at √sNN=2.76 TeV with the ATLAS Detector at the LHC
Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M. & AbouZeid, O. S. et al. (2010)
Physical Review Letters, 105(25) art. 252303. DOI: https://doi.org/10.1103/PhysRevLett.105.252303
Documents & Media
Details
- Authors Group
- ATLAS Collaboration
The authors list is uncomplete: - Authors
- Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Aben, R.; Abolins, M.; AbouZeid, O. S.; Abramowicz, H.; Abreu, H.; Abreu, R.; Zwalinski, L.
- Abstract
- 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.
- Issue Date
- 13-December-2010
- Journal
- Physical Review Letters
- Organization
- Fakultät für Physik
- ISSN
- 1079-7114
- Extent
- 18
- Language
- English
