Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector
A measurement of event-plane correlations involving two or three event planes of different order is presented as a function of centrality for 7 μb[superscript −1] Pb + Pb collision data at √s[subscript NN] = 2.76, recorded by the ATLAS experiment at the Large Hadron Collider. Fourteen correlators ar...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/91209 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1811091651566764032 |
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| author | Taylor, Frank E. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. |
| author_sort | Taylor, Frank E. |
| collection | MIT |
| description | A measurement of event-plane correlations involving two or three event planes of different order is presented as a function of centrality for 7 μb[superscript −1] Pb + Pb collision data at √s[subscript NN] = 2.76, recorded by the ATLAS experiment at the Large Hadron Collider. Fourteen correlators are measured using a standard event-plane method and a scalar-product method, and the latter method is found to give a systematically larger correlation signal. Several different trends in the centrality dependence of these correlators are observed. These trends are not reproduced by predictions based on the Glauber model, which includes only the correlations from the collision geometry in the initial state. Calculations that include the final-state collective dynamics are able to describe qualitatively, and in some cases also quantitatively, the centrality dependence of the measured correlators. These observations suggest that both the fluctuations in the initial geometry and the nonlinear mixing between different harmonics in the final state are important for creating these correlations in momentum space. |
| first_indexed | 2024-09-23T15:05:46Z |
| format | Article |
| id | mit-1721.1/91209 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:05:46Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/912092022-09-29T12:39:52Z Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. A measurement of event-plane correlations involving two or three event planes of different order is presented as a function of centrality for 7 μb[superscript −1] Pb + Pb collision data at √s[subscript NN] = 2.76, recorded by the ATLAS experiment at the Large Hadron Collider. Fourteen correlators are measured using a standard event-plane method and a scalar-product method, and the latter method is found to give a systematically larger correlation signal. Several different trends in the centrality dependence of these correlators are observed. These trends are not reproduced by predictions based on the Glauber model, which includes only the correlations from the collision geometry in the initial state. Calculations that include the final-state collective dynamics are able to describe qualitatively, and in some cases also quantitatively, the centrality dependence of the measured correlators. These observations suggest that both the fluctuations in the initial geometry and the nonlinear mixing between different harmonics in the final state are important for creating these correlations in momentum space. United States. Dept. of Energy National Science Foundation (U.S.) Brookhaven National Laboratory 2014-10-29T12:13:49Z 2014-10-29T12:13:49Z 2014-08 2014-03 Article http://purl.org/eprint/type/JournalArticle 0556-2813 1089-490X http://hdl.handle.net/1721.1/91209 Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector.” Phys. Rev. C 90, no. 2 (August 2014). © 2014 CERN, for the ATLAS Collaboration https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevC.90.024905 Physical Review C Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf American Physical Society American Physical Society |
| spellingShingle | Taylor, Frank E. Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title | Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title_full | Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title_fullStr | Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title_full_unstemmed | Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title_short | Measurement of Event-Plane Correlations in √s[subscript NN] = 2.76 TeV Lead-Lead Collisions with the ATLAS Detector |
| title_sort | measurement of event plane correlations in √s subscript nn 2 76 tev lead lead collisions with the atlas detector |
| url | http://hdl.handle.net/1721.1/91209 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofeventplanecorrelationsinssubscriptnn276tevleadleadcollisionswiththeatlasdetector |