Effects of non-uniform acceptance in anisotropic flow measurement
Abstract
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.
Keywords
Cite
@article{arxiv.0707.4672,
title = {Effects of non-uniform acceptance in anisotropic flow measurement},
author = {Ilya Selyuzhenkov and Sergei Voloshin},
journal= {arXiv preprint arXiv:0707.4672},
year = {2008}
}
Comments
7 pages, minor changes, discussion on the multiplicity correlations due to detector effects has been expanded