Numerical Simulation of Thermal Noise in Heavy Ion Collisions

[摘要] Thermal noise is present in any viscous fluid, making the simulation of relativistic noise in heavy ion collisions a necessity. It is likely possible to use it to make an independent measurement of viscosity in heavy ion collisions. The size, energy densities, and time scales of the collisions determine the relative importance of thermal noise. This causes a non-trivial contribution to two-particle correlations as well as event-by-event fluctuations in observables.

[发布机构] School of Physics and Astronomy, 116 Church Street S.E., Minneapolis; MN; 55455, United States^1;School of Physics and Astronomy, University of Minnesota, Minneapolis; MN; 55455, United States^2;Department of Physics, McGill University, 3600 rue University, Montreal; QC; H3A 2T8, Canada^3;Physics Department, Bldg. 510A, Brookhaven National Laboratory, Upton; NY; 11973, United States^4

[关键词] Energy density;Event-by-event fluctuations;Heavy ion collision;Independent measurement;Non-trivial;Time-scales;Two particle correlation;Viscous fluids