3D jet topography of the twisted color glass condensate

Independent experimental constraints on the initial condition assumed in hydrodynamics to predict collective flow in Au+Au at 200 AGeV are essential to strengthen the case for the “perfect fluid” property of deconfined quark-gluon matter. We propose a 3D jet tomographic test of possible novel initial surface geometries predicted by a color glass condensate model of initial conditions. We show that high p_T and rapidity, η, differential directed flow v₁(p_T>6,|η|>1) is sensitive to the generic rapidity twist of the bulk low p_T matter in the reaction plane and can differentiate between conventional diffuse Glauber surfaces and sharper surfaces possible in some parametrizations of the color glass condensate.