Elliptic Flow at Large Viscosity

Understand

In this contribution we present an alternative scenario for the large elliptic flow observed in relativistic heavy ion collisions.

• Motivated by recent results from Lattice QCD on flavor off-diagonal susceptibilities we argue that the matter right above $T_{c}$ can be described by single-particle dynamics in a repulsive single-particle potential, which in turn gives rise to elliptic flow.
• These ideas can be tested experimentally by measuring elliptic flow of heavy quarks, preferably via the measurement of $J/\Psi$ elliptic flow.