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Moments of the Wigner function and Renyi entropies at freeze-out

2005/12/22 by A. Bialas, A. Białas, W. Czyz +2
Mathematics · Physics and Astronomy · #High-Energy Particle Collisions Research #Statistical Distribution Estimation and Applications #Statistical Mechanics and Entropy #hep-ph

paper · pdf · doi:10.1103/physrevc.73.034912

published as Phys.Rev.C73:034912,2006 · 15 pages, one figure

arxiv created 2005/12/22 · openalex publication_date 2006/03/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

The relation between Renyi entropies and moments of the Wigner function, representing the quantum mechanical description of the M-particle semi-inclusive distribution at freeze-out, is investigated. It is shown that in the limit of infinite volume of the system, the classical and quantum descriptions are equivalent. Finite volume corrections are derived and shown to be small for systems encountered in relativistic heavy ion collisions.

Citations