Consequences of temperature fluctuations in observables measured in high-energy collisions

We review the consequences of intrinsic, nonstatistical temperature fluctuations as seen in observables measured in high-energy collisions. We do this from the point of view of nonextensive statistics and Tsallis distributions. Particular attention is paid to multiplicity fluctuations as a first con...

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Bibliographic Details
Published inThe European physical journal. A, Hadrons and nuclei Vol. 48; no. 11
Main Authors Wilk, G., Włodarczyk, Z.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2012
Subjects
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Review
Topical Issue on Relativistic Hydro- and Thermodynamics
Phase Space
Multiplicity Distribution
Entropy
Acta Phys
Negative Binomial Distribution
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Summary:We review the consequences of intrinsic, nonstatistical temperature fluctuations as seen in observables measured in high-energy collisions. We do this from the point of view of nonextensive statistics and Tsallis distributions. Particular attention is paid to multiplicity fluctuations as a first consequence of temperature fluctuations, to the equivalence of temperature and volume fluctuations, to the generalized thermodynamic fluctuations relations allowing us to compare fluctuations observed in different parts of the phase space, and to the problem of the relation between Tsallis entropy and Tsallis distributions. We also discuss the possible influence of conservation laws on these distributions and provide some examples of how one can get them without considering temperature fluctuations.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2012-12161-y