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Effects of nonuniform acceptance in anisotropic flow measurements

2007/07/31 by I. Selyuzhenkov, Ilya Selyuzhenkov, S. A. Voloshin +1
Engineering · Physics and Astronomy · #Nuclear reactor physics and engineering #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies #nucl-th

paper · pdf · doi:10.1103/physrevc.77.034904

published as Phys.Rev.C77:034904,2008 · 7 pages, minor changes, discussion on the multiplicity correlations due to detector effects has been expanded

arxiv created 2007/09/22 · openalex publication_date 2008/03/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The applicability of anisotropic flow measurement techniques and their extension for detectors with nonuniform azimuthal acceptance are discussed. Considering anisotropic flow measurements 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 the self-consistency of the analysis. Based on these observables we propose a technique that explicitly takes into account the effects of nonuniform detector acceptance. Within this approach the acceptance corrections, as well as parameters that 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.

Citations