RHIC multiplicity distributions and superposition models

Details RHIC multiplicity distributions and superposition models RHIC multiplicity distributions and superposition models

2009-10-19

arxiv.org/abs/0910.3480v2

Acta Phys. Polon. B (2010) 41: 1317-1325

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures Fig. 1 corrected, minor changes in text, one reference added

Scientific paper

The recent PHENIX mid-rapidity measurements of multiplicity distributions for centrality bins are analyzed in the framework of superposition models. A simple superposition of pp events is shown to disagree with the heavy ion data for dispersion as a function of centrality. However, it is suggested that a model describing properly the pp data and based in the "wounded quark" idea may be compatible with the multiplicity data for heavy ion collisions.

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