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arXiv · 1101.1925

The Rise and Fall of the Ridge

Paul Sorensen
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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 $v_n^2/ε_{n,part}^{2}$ as a useful way to study these effects and explain what it tells us about the collision dynamics.

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Paul Sorensen. 2011-01-10. The Rise and Fall of the Ridge. https://doi.org/10.1016/j.nuclphysa.2011.02.046

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