Elliptic Flow and Fixed pT Suppression in a Final State Interaction Model
Abstract
It has been shown that a final state interaction model, used to describe J/psi suppression, can also describe the fixed pT suppression of the pi0 (and charged pions) yield at all values of pT, with a final state interaction cross-section sigma close to one milibarn. We propose an extension of the model to the pion motion in the transverse plane - which introduces a dependence of the suppression on the azimuthal angle thetaR. Using the same value of sigma, we obtain values of the elliptic flow v2 close to the experimental ones, for all values of pT, including the soft pT region.
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