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Preprints
Report number arXiv:1704.08377
Title Describing dynamical fluctuations and genuine correlations by Weibull regularity
Related titleDescribing dynamical fluctuations and genuine correlations by Weibull regularity
Author(s) Nayak, Ranjit K. (Indian Inst. Tech., Mumbai) ; Dash, Sadhana (Indian Inst. Tech., Mumbai) ; Sarkisyan-Grinbaum, Edward K. (CERN ; Texas U., Arlington) ; Tasevsky, Marek (Prague, Inst. Phys.)
Publication 2017
Imprint 2017-04-26
Number of pages 10
Note 10 pages, 2 figures
Subject category hep-ph ; Particle Physics - Phenomenology
Abstract The Weibull parametrization of the multiplicity distribution is used to describe the multidimensional local fluctuations and genuine multiparticle correlations measured by OPAL in the large statistics $e^{+}e^{-} \to Z^{0} \to hadrons$ sample. The data are found to be well reproduced by the Weibull model up to higher orders. The Weibull predictions are compared to the predictions by the two other models, namely by the negative binomial and modified negative binomial distributions which mostly failed to fit the data. The Weibull regularity, which is found to reproduce the multiplicity distributions along with the genuine correlations, looks to be the optimal model to describe the multiparticle production process.
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 Record created 2017-05-18, last modified 2023-03-14


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