Femtoscopy in Relativistic Heavy Ion Collisions and its Relation to Bulk Properties of QCD Matter

Abstract

Using a viscous hydrodynamic model coupled to a hadronic cascade code, numerous features of the dynamics and equilibrium properties are explored for their impact on femtoscopic measurements. The equation of state, viscous parameters and initial conditions are investigated. We find that femtoscopy is affected by numerous model features at the 10% level, and that by including features and adjusting unknown parameters, one can explain experimental source size measurements to better than 10%.

Comments: 18 pages, 9 figures (corrected version, Fig. 7 of previous version had error in caption)