Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector
This Letter describes the measurement of elliptic flow of charged particles in lead–lead collisions at √s[subscript NN]=2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 μb[superscript −1]. Elliptic flow is meas...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier B.V.
2014
|
| Online Access: | http://hdl.handle.net/1721.1/92036 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826197754698792960 |
|---|---|
| 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 | This Letter describes the measurement of elliptic flow of charged particles in lead–lead collisions at √s[subscript NN]=2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 μb[superscript −1]. Elliptic flow is measured over a wide region in pseudorapidity, |η|<2.5|, and over a broad range in transverse momentum, 0.5<pT<20 GeV. The elliptic flow parameter v2 is obtained by correlating individual tracks with the event plane measured using energy deposited in the forward calorimeters. As a function of transverse momentum, v2(pT) reaches a maximum at pT of about 3 GeV, then decreases and becomes weakly dependent on pT above 7–8 GeV. Over the measured pseudorapidity region, v2 is found to be only weakly dependent on η, with less variation than observed at lower beam energies. The results are discussed in the context of previous measurements at lower collision energies, as well as recent results from the LHC. |
| first_indexed | 2024-09-23T10:52:38Z |
| format | Article |
| id | mit-1721.1/92036 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:52:38Z |
| publishDate | 2014 |
| publisher | Elsevier B.V. |
| record_format | dspace |
| spelling | mit-1721.1/920362022-09-27T15:37:43Z Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector Taylor, Frank E. Massachusetts Institute of Technology. Department of Physics Taylor, Frank E. This Letter describes the measurement of elliptic flow of charged particles in lead–lead collisions at √s[subscript NN]=2.76 TeV using the ATLAS detector at the Large Hadron Collider (LHC). The results are based on an integrated luminosity of approximately 7 μb[superscript −1]. Elliptic flow is measured over a wide region in pseudorapidity, |η|<2.5|, and over a broad range in transverse momentum, 0.5<pT<20 GeV. The elliptic flow parameter v2 is obtained by correlating individual tracks with the event plane measured using energy deposited in the forward calorimeters. As a function of transverse momentum, v2(pT) reaches a maximum at pT of about 3 GeV, then decreases and becomes weakly dependent on pT above 7–8 GeV. Over the measured pseudorapidity region, v2 is found to be only weakly dependent on η, with less variation than observed at lower beam energies. The results are discussed in the context of previous measurements at lower collision energies, as well as recent results from the LHC. United States. Dept. of Energy National Science Foundation (U.S.) 2014-12-05T17:03:42Z 2014-12-05T17:03:42Z 2012-02 2011-12 Article http://purl.org/eprint/type/JournalArticle 03702693 http://hdl.handle.net/1721.1/92036 Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Measurement of the Pseudorapidity and Transverse Momentum Dependence of the Elliptic Flow of Charged Particles in Lead–lead Collisions at √s[subscript NN] = 2.76 TeV with the ATLAS Detector.” Physics Letters B 707, no. 3–4 (February 2012): 330–348. https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1016/j.physletb.2011.12.056 Physics Letters B Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier B.V. Elsevier |
| spellingShingle | Taylor, Frank E. Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title | Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title_full | Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title_fullStr | Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title_full_unstemmed | Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title_short | Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead–lead collisions at √sNN = 2.76 TeV with the ATLAS detector |
| title_sort | measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead lead collisions at √snn 2 76 tev with the atlas detector |
| url | http://hdl.handle.net/1721.1/92036 https://orcid.org/0000-0002-7586-7253 |
| work_keys_str_mv | AT taylorfranke measurementofthepseudorapidityandtransversemomentumdependenceoftheellipticflowofchargedparticlesinleadleadcollisionsatsnn276tevwiththeatlasdetector |