Error estimation for moment analysis in heavy-ion collision experiment

X. Luo

Type: Article

Publication Date: 2012-01-12

Citations: 85

DOI: https://doi.org/10.1088/0954-3899/39/2/025008

Abstract

Fluctuations of conserved quantities are predicted to be sensitive to the correlation length and connected to the thermodynamic susceptibility. Thus, moments of net-baryon, net-charge and net-strangeness have been extensively studied theoretically and experimentally to explore phase structure and bulk properties of QCD matters created in heavy ion collision experiment. As the moments analysis is statistics hungry study, the error estimation is crucial to extract physics information from the limited experimental data. In this paper, we will derive the limit distributions and error formula based on Delta theorem in statistics for various order moments used in the experimental data analysis. The Monte Carlo simulation is also applied to test the error formula.

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arXiv (Cornell University) - View - PDF
DataCite API - View
Journal of Physics G Nuclear and Particle Physics - View

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