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Directed flow from global symmetry and initial state Fluctuations |
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| Authors: | Laszlo P. Csernai Astrid Sk?lvik D. J. Wang Daniel Strottman Csaba Anderlik Yun Cheng Yu L. Yan Ben H. Sa |
| Affiliation: | 1. Department of Physics and Technology, University of Bergen, 5007, Bergen, Norway 2. Uni Computing, Thorm?hlensgate 55, N-5008, Bergen, Norway 3. Institute of Particle Physics, Huazhong Normal University, 430079, Wuhan, China 4. China Institute of Atomic Energy, P. O. Box 275 (10), 102413, Beijing, China |
| 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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