Event-by-event pT fluctuations and multiparticle clusters in relativistic heavy-ion collisions

Details Event-by-event pT fluctuations and multiparticle clusters in relativistic heavy-ion collisions Event-by-event pT fluctuations and multiparticle clusters in relativistic heavy-ion collisions

2005-10-11

arxiv.org/abs/nucl-th/0510033v1

Phys.Lett. B635 (2006) 290-294

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

10.1016/j.physletb.2006.02.056

We explore the dependence of the pT correlations in the event-by-event analysis of relativistic heavy-ion collisions at RHIC made recently by the PHENIX and STAR Collaborations. We point out that the observed scaling of strength of dynamical fluctuations with the inverse number of particles can be naturally explained by the formation of clusters. We argue that the large magnitude of the measured covariance implies that the clusters contain at least several particles. We also discuss whether the clusters may originate from jets. In addition, we provide numerical estimates of correlations coming from resonance decays and thermal clusters.

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