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High Energy Physics Seminars
| High Energy
Wednesday, January 31, 2007
Physics Building, Room 204
[Host: E. Craig Dukes]
University of Virginia
"Bulk Viscosity of High Temperature QCD"
The data obtained from RHIC experiments is reproduced pretty well by ideal
hydrodynarnical models. However, the first corrections to perfect fluid behavior are also
important in interpreting the data and are characterized by shear and bulk viscosities, I
will explain the perturbative calculation of the bulk viscosity of high-temperature QCD
using kinetic theory to leading order in the coupling constant. This fills a gap in the
literature since even a parametric estimate of this quantity was absent prior to OUT work.
Although it may not be justified to apply our results to the strongly coupled plasma
produced at RHIC, we hope that they will at least provide the right order of magnitude.
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