Phys. Rev. C 70, 034901 (2004) - Particle number fluctuations in a canonical ensemble

Particle number fluctuations in a canonical ensemble

V. V. Begun, M. Gaździcki, M. I. Gorenstein, and O. S. Zozulya

Phys. Rev. C 70, 034901 – Published 2 September 2004

Abstract

Fluctuations of charged particle number are studied in the canonical ensemble. In the infinite volume limit the fluctuations in the canonical ensemble are different from the fluctuations in the grand canonical one. Thus, the well-known equivalence of both ensembles for the average quantities does not extend for the fluctuations. In view of the possible relevance of the results for the analysis of fluctuations in nuclear collisions at high energies, a role of the limited kinematical acceptance is studied.

Received 21 April 2004

DOI:https://doi.org/10.1103/PhysRevC.70.034901

©2004 American Physical Society

Authors & Affiliations

V. V. Begun¹, M. Gaździcki^2,3, M. I. Gorenstein^1,4, and O. S. Zozulya^4,5

¹Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine
²Institut für Kernphysik, Universität Frankfurt, Frankfurt, Germany
³Świȩtokrzyska Academy, Kielce, Poland
⁴Institut für Theoretische Physik, Universität Frankfurt, Frankfurt, Germany
⁵Taras Shevchenko Kiev National University, Kiev, Ukraine

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Issue

Vol. 70, Iss. 3 — September 2004

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