Eccentricity fluctuations and its possible effect on elliptic flow measurements

Dec, 2003
4 pages
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Abstract:
The elliptic flow measured at RHIC has been interpreted as a signature for strong partonic interactions early in the collision and as an indication of a well developed quark-gluon plasma phase. The measured values of elliptic flow, using methods based on multi-particle correlations, are affected by fluctuations in the magnitude of the elliptic flow. In this Letter, using a Monte Carlo Glauber calculation, we estimate what the possible effect of spatial eccentricity fluctuations is on the determination of elliptic flow.
Note:
  • 4 pages, 4 figures, version 2 replaces fig 4a which had one line missing
  • scattering: heavy ion
  • multiple production
  • particle flow: elliptic flow
  • quark gluon: plasma
  • angular correlation: ((n)particle)
  • cumulant expansion
  • fluctuation
  • model: Glauber
  • impact parameter: dependence
  • numerical calculations: Monte Carlo
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