# Quark Matter 2014 - XXIV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions

19-24 May 2014
Europe/Zurich timezone

## Causal baryon diffusion and colored noise

21 May 2014, 09:40
20m

### europium

Schlossgraben 1 64283 Darmstadt Germany
Contributed Talk Correlations and Fluctuations

### Speaker

Prof. Joseph Kapusta (University of Minnesota)

### Description

We construct a model of baryon diffusion which has the desired properties of causality and analyticity. The model also has the desired property of colored noise, meaning that the noise correlation function is not a Dirac delta function in space and time; rather, it depends on multiple time and length constants. The model can readily be incorporated in 3+1 dimensional 2nd order viscous hydro-dynamical models of heavy ion collisions, which is particularly important at beam energies where the baryon density is large.
On behalf of collaboration: None

### Primary author

Prof. Joseph Kapusta (University of Minnesota)

### Co-author

Dr Clint Young (University of Minnesota)

 Slides