The eccentricities of flow - elliptic flow fluctuations and evidence for transverse localization in the initial state of the matter in relativistic heavy ion collisions
Abstract
Description
Recent measurements of event-by-event elliptic flow in Au+Au collisions at sqrt(sNN) = 200 GeV exhibit large relative fluctuations of about 40~50%. The data are well described by fluctuations in the shape of the initial collision region, as estimated event-by-event with the participant eccentricity using Glauber Monte Carlo. These results, combined with the demonstrated participant eccentricity scaling of the elliptic flow across nuclear species, constitute evidence of transverse granularity in the initial matter production in these collisions.
4 pages, 2 figures, Presented at the International Workshop on Hadron Physics and Properties of High Baryon Density Matter, Xi'an, China, November 2006
4 pages, 2 figures, Presented at the International Workshop on Hadron Physics and Properties of High Baryon Density Matter, Xi'an, China, November 2006