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Sanchis-Lozano, M. A., & Sarkisyan-Grinbaum, E. (2017). Ridge effect and three-particle correlations. Phys. Rev. D, 96(7), 074012–13pp.
Abstract: Pseudorapidity and azimuthal three-particle correlations are studied based on a correlated-cluster model of multiparticle production. The model provides a common framework for correlations in proton-proton and heavy-ion collisions allowing easy comparison with the measurements. It is shown that azimuthal cluster correlations are definitely required in order to understand three-particle correlations in the near-side ridge effect. This is similar to the explanation of the ridge phenomenon found in our previous analysis of two-particle correlations and generalizes the model to higher-order correlations.
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