Exploiting Intrinsic Triangular Geometry in Relativistic He 3 +Au Collisions to Disentangle Medium Properties

. Bycomparing systems with one, two, and three initial hot spots, one can disentangle the e ects fromthe initial spatial distribution of the deposited energy and viscous damping. These are key tools toanswering the question of how small a droplet of matter is necessary to form a quark-gluon plasmadescribed by nearly inviscid hydrodynamics.