Particle Number Fluctuations in Canonical Ensemble

M. Gazdzicki; M.I. Gorenstein; O.S. Zozulya; V.V. Begun

Particle Number Fluctuations in Canonical Ensemble

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arxiv nucl-th/0404056 v1 pith:A7LSOBX6 submitted 2004-04-20 nucl-th

Particle Number Fluctuations in Canonical Ensemble

V.V. Begun , M. Gazdzicki , M.I. Gorenstein , O.S. Zozulya This is my paper

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keywords fluctuationscanonicalensemblenumberparticlestudiedacceptanceanalysis

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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 a 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.

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Subensemble Acceptance Method 3.0: General Corrections to Cumulants from Exact Conservation Constraints
hep-ph 2026-07 unverdicted novelty 7.0

SAM-3.0 derives canonical cumulants from grand-canonical joint cumulants via a closed recursion with multivariate partial exponential Bell polynomials for arbitrary numbers of conserved charges and observables.