Rapidity correlations test stochastic hydrodynamics

Autor: Zin, Christopher, Gavin, Sean, Moschelli, George
Rok vydání: 2016
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1088/1742-6596/832/1/012043
Popis: We show that measurements of the rapidity dependence of transverse momentum correlations can be used to determine the characteristic time $\tau_{\pi}$ that dictates the rate of isotropization of the stress energy tensor, as well as the shear viscosity $\nu = \eta/sT$. We formulate methods for computing these correlations using second order dissipative hydrodynamics with noise. Current data are consistent with $\tau_{\pi}/\nu \sim 10$ but targeted measurements can improve this precision.
Comment: 4 pages, 1 figure, Proceedings of Hot Quarks 2016
Databáze: arXiv