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Comparison of Tsallis statistics with the Tsallis-factorized statistics in the ultrarelativistic pp collisions

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Abstract.

The Tsallis statistics was applied to describe the experimental data on the transverse momentum distributions of hadrons. We considered the energy dependence of the parameters of the Tsallis-factorized statistics, which is now widely used for the description of the experimental transverse momentum distributions of hadrons, and the Tsallis statistics for the charged pions produced in pp collisions at high energies. We found that the results of the Tsallis-factorized statistics deviate from the results of the Tsallis statistics only at low NA61/SHINE energies when the value of the entropic parameter is close to unity. At higher energies, when the value of the entropic parameter deviates essentially from unity, the Tsallis-factorized statistics satisfactorily recovers the results of the Tsallis statistics.

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Authors and Affiliations

  1. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia

    A. S. Parvan

  2. Department of Theoretical Physics, Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest-Magurele, Romania

    A. S. Parvan

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  1. A. S. Parvan
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Correspondence to A. S. Parvan.

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Communicated by G. Torrieri

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Parvan, A.S. Comparison of Tsallis statistics with the Tsallis-factorized statistics in the ultrarelativistic pp collisions. Eur. Phys. J. A 52, 355 (2016). https://doi.org/10.1140/epja/i2016-16355-y

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  • DOI: https://doi.org/10.1140/epja/i2016-16355-y

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