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System Size and Centrality Dependence of the Electric Charge Correlations in A+A and p+p Collisions at the SPS Energies

NA49 Collaboration
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Abstract

The Balance Function analysis method was developed in order to study the long range correlations in pseudo-rapidity of charged particle. The final results on p+p, C+C, Si+Si and centrality selected Pb+Pb collisions at $\sqrt{s_{NN}} = 17.2$ GeV and the preliminary data at $\sqrt{s_{NN}} = 8.8$ GeV are presented. The width of the Balance Function decreases with increasing system size and centrality of the collisions. This could suggest a delayed hadronization scenario.

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NA49 Collaboration. 2004-11-17. System Size and Centrality Dependence of the Electric Charge Correlations in A+A and p+p Collisions at the SPS Energies. https://doi.org/10.1016/j.nuclphysa.2004.12.051

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