Report number
| arXiv:1209.4232 |
Title
| Measurement of the distributions of event-by-event flow harmonics in Pb-Pb Collisions at $\sqrt{s_{nn}}$=2.76 TeV with the ATLAS detector |
Author(s)
| Jia, Jiangyong (SUNY, Stony Brook, Chem. Dept. ; Brookhaven) |
Collaboration
| for the ATLAS collaboration |
Publication
| 2013 |
Imprint
| 20 Sep 2012 |
Number of pages
| 4 |
Note
| 4 pages, 5 figures, proceedings of talk at the 23rd International
Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, QM2012, August
13-18, 2012, Washington DC |
In:
| Nucl. Phys. A 904-905 (2013) 421c-424c |
In:
| 23rd International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Washington, DC, USA, 13 - 18 Aug 2012, pp.421c-424c |
DOI
| 10.1016/j.nuclphysa.2013.02.039
|
Subject category
| Nuclear Physics - Experiment |
Accelerator/Facility, Experiment
| CERN LHC ; ATLAS |
Abstract
| The event-by-event distributions of harmonic flow coefficients v_n for n=2-4 are measured in Pb-Pb collisions at sqrt(s_nn)=2.76 TeV with the ATLAS detector, using charged particles with p_T > 0.5 GeV and |\eta|<2.5. The shape of the v_n distributions is consistent with Gaussian fluctuations in central collisions for v_2 and over the measured centrality range for v_3 and v_4. When these distributions are rescaled to have the same <v_n>, the resulting shapes are nearly the same for p_T>1 GeV and 0.5<p_T<1 GeV. The v_n distributions are compared with the eccentricity distributions from two initial geometry models: Glauber and the MC-KLN model. Both fail to describe the v_2 data consistently over the full centrality range |
Copyright/License
| CERN (Licenses: arXiv nonexclusive-distrib. 1.0, CC-BY-NC-ND-4.0) |