Seminar in Hadronic Physics

Numerical simulation of hydrodynamical noise in heavy-ion collisions

Clint Young

University of Minnesota

The relation between fluctuations and dissipation connects hydrodynamical noise to the viscosity of fluids. As a result, measurements sensitive to these fluctuations can provide an independent measurement of shear viscosity. After reviewing the theory of fluctuations and their effect in analytic calculations of correlations over rapidity, the implementation of a numerical simulation of stochastic hydrodynamics will be described. A few simulations show a significant effect caused by fluctuations, especially near the freeze-out temperatures commonly used in simulations of heavy-ion collisions.