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arXiv · 1404.1256

Statistical Power-Law Spectra due to Reservoir Fluctuations

T. S. Biró·G. G. Barnaföldi·P. Ván·K. Ürmössy
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Abstract

LHC ALICE data are interpreted in terms of statistical power-law tailed pT spectra. As explanation we derive such statistical distributions for particular particle number fluctuation patterns in a finite heat bath exactly, and for general thermodynamical systems in the subleading canonical expansion approximately. Our general result, $q = 1 - 1/C + ΔT^2 / T^2$, demonstrates how the heat capacity and the temperature fluctuation effects compete, and cancel only in the standard Gaussian approximation.

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T. S. Biró, G. G. Barnaföldi, P. Ván, K. Ürmössy. 2014-04-04. Statistical Power-Law Spectra due to Reservoir Fluctuations. https://arxiv.org/abs/1404.1256

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