The Rise and Fall of the Ridge
arXiv:1101.1925 · doi:10.1016/j.nuclphysa.2011.02.046
Abstract
Recent data from heavy ion collisions at RHIC show unexpectedly large near-angle correlations that broaden longitudinally with centrality. The amplitude of this ridge-like correlation rises rapidly with centrality, reaches a maximum, and then falls in the most central collisions. In this talk we explain how this behavior can be easily understood in a picture where final momentum-space correlations are driven by initial coordinate space density fluctuations. We propose as a useful way to study these effects and explain what it tells us about the collision dynamics.
6 pages, 5 figures, proceedings for Hard Probes 2010 in Eilat, Israel
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