The European Physical Journal A

, Volume 45, Issue 1, pp 51–55 | Cite as

Superposition models and the multiplicity fluctuations in heavy-ion collisions

  • K. Fiałkowski
  • R. WitEmail author
Regular Article - Theoretical Physics


A class of simple superposition models based on the Glauber picture of multiple collisions is compared with the data on the centrality dependence of the multiplicity distributions in a central rapidity bin. We show how the results depend on the specific assumptions concerning the distributions in the number of participants and their relations to the distributions of the number of produced hadrons in various phase space bins. None of the versions of the model describes satisfactorily the centrality dependence of the scaled dispersion.


Impact Parameter Negative Binomial Distribution Multiplicity Distribution Centrality Dependence Charged Hadron 
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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  1. 1.M. Smoluchowski Institute of PhysicsJagellonian UniversityKrakówPoland

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