Abstract
Collective flow is studied in a 3+1D fluid dynamical model with globally symmetric, peripheral initial conditions, taking into account the shear flow. At \(\sqrt {s_{NN} } \) = 2.76 TeV in semi-peripheral Pb+Pb collisions this leads to rotation, while at more peripheral collisions with high resolution and low numerical viscosity, the initial development of a Kelvin-Helmholz instability is observed. This effect provides a precision tool for studying the viscosity of Quark-Gluon Plasma.
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Csernai, L.P., Skålvik, A., Wang, D.J. et al. Directed flow from global symmetry and initial state Fluctuations. centr.eur.j.phys. 10, 1271–1273 (2012). https://doi.org/10.2478/s11534-012-0146-4
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DOI: https://doi.org/10.2478/s11534-012-0146-4