Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-12-19
Nucl.Phys.A784:515-535,2007
Physics
Nuclear Physics
Nuclear Theory
Accepted for publication in Nucl. Phys. A
Scientific paper
10.1016/j.nuclphysa.2006.12.002
A model of particle production is developed based on a parallel with a theory of Bose-Einstein condensation and similarities with other critical phenomena such as critical opalescence. The role of a power law critical exponent tau and Levy index alpha are studied. Various features of this model are developed and compared with other commonly used models of particle production which are shown to differ by having different values for tau, alpha. While void scaling is a feature of this model, hierarchical structure is not a general property of it. The value of the exponent tau=2 is a transition point associated with void and hierarchical scaling features. An exponent gamma is introduced to describe enhanced fluctuations near a critical point. Experimentally determined properties of the void scaling function can be used to determine tau.
Csorgo Tamas
Hegyi Sandor
Mekjian Aram Z.
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