Effects of non-uniform acceptance in anisotropic flow measurement

Details Effects of non-uniform acceptance in anisotropic flow measurement Effects of non-uniform acceptance in anisotropic flow measurement

2007-07-31

arxiv.org/abs/0707.4672v2

Phys.Rev.C77:034904,2008

Physics

Nuclear Physics

Nuclear Theory

7 pages, minor changes, discussion on the multiplicity correlations due to detector effects has been expanded

Scientific paper

10.1103/PhysRevC.77.034904

Applicability of anisotropic flow measurement techniques and their extension for detectors with non-uniform azimuthal acceptance are discussed. Considering anisotropic flow measurement with two and three (mixed harmonic) azimuthal correlations we introduce a set of observables based on the x and y components of the event flow vector. These observables provide independent measures of anisotropic flow, and can be used to test self-consistency of the analysis. Based on these observables we propose a technique that explicitly takes into account the effects of non-uniform detector acceptance. Within this approach the acceptance corrections, as well as parameters which define the method applicability, can be determined directly from experimental data. For practical purposes a brief summary of the method is provided at the end.

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