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Nuclear Experiment

arXiv:1101.4646 (nucl-ex)
[Submitted on 24 Jan 2011 (v1), last revised 15 Feb 2013 (this version, v3)]

Title:Possibility to disentangle anisotropic flow, flow fluctuation, and nonflow assuming Gaussian fluctuations

Authors:Li Yi, Fuqiang Wang, Aihong Tang
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Abstract:We suggest the possibility to disentangle anisotropic flow, flow fluctuation, and nonflow using two-, four-, and six-particle azimuthal moments assuming Gaussian fluctuations. We show that such disentanglement is possible when the flow fluctuations are large, comparable to the average flow magnitude. When fluctuations are small, the disentanglement becomes difficult. We verify our results with a toy-model Monte Carlo simulation.
Comments: 6 pages, 1 table, 1 figure. Shortened introduction, removed appendices with technical details, added a reference to S Voloshin's earlier study on the subject, and several other changes to improve the discussions. Clarified the role of harmonic planes and definite positivity in experimental "flow" measurements, published version
Subjects: Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
Cite as: arXiv:1101.4646 [nucl-ex]
  (or arXiv:1101.4646v3 [nucl-ex] for this version)
  https://doi.org/10.48550/arXiv.1101.4646
Journal reference: J. Phys. G: Nucl. Part. Phys. 40 (2013) 035111
Related DOI: https://doi.org/10.1088/0954-3899/40/3/035111

Submission history

From: Fuqiang Wang [view email]
[v1] Mon, 24 Jan 2011 20:55:33 UTC (17 KB)
[v2] Thu, 12 Apr 2012 18:42:13 UTC (16 KB)
[v3] Fri, 15 Feb 2013 15:24:31 UTC (17 KB)
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