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Non-extensive statistical effects in high-energy collisions

  • Regular Article - Theoretical Physics
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Abstract

Following the basic prescriptions of the relativistic Tsallis’ non-extensive thermostatistics, we investigate from a phenomenological point of view the relevance of non-extensive statistical effects on relativistic heavy-ion collisions observables, such as rapidity spectra of the net proton production, transverse momentum distributions and transverse momentum fluctuations. Moreover, we study the nuclear and the subnuclear equation of state, investigating the critical densities of a phase transition to a hadron-quark-gluon mixed phase by requiring the Gibbs conditions on the global conservation of the electric and the baryon charges. The relevance of small deviations from the standard extensive statistics is studied in the context of intermediate- and high-energy heavy-ion collisions.

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Authors and Affiliations

  1. Dipartimento di Fisica, Università di Torino, Via P. Giuria 1, I-10124, Torino, Italy

    W. M. Alberico

  2. Dipartimento di Fisica, Politecnico di Torino, C.so Duca degli Abruzzi 24, I-10129, Torino, Italy

    A. Lavagno

  3. Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Torino, Italy

    W. M. Alberico & A. Lavagno

Authors
  1. W. M. Alberico
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  2. A. Lavagno
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Correspondence to A. Lavagno.

Additional information

Communicated by U.-G. Meißner

This paper is part of the Topical Issue Statistical Power Law Tails in High-Energy Phenomena.

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Alberico, W.M., Lavagno, A. Non-extensive statistical effects in high-energy collisions. Eur. Phys. J. A 40, 313 (2009). https://doi.org/10.1140/epja/i2009-10809-3

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