Signals of a Weibel instability in the melting color glass condensate |
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Authors: | P Romatschke R Venugopalan |
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Institution: | 1. Fakult?t für Physik, Universit?t Bielefeld, D-33615, Bielefeld, Germany 2. Physics Department, Brookhaven National Laboratory, 11973, Upton, NY, USA
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Abstract: | Based on our work hep-ph/0510121, we discuss further the numerical study of classical SU(2) 3+1-D Yang-Mills equations for matter produced in a high-energy heavy-ion collision. The growth of the amplitude of fluctuations
as exp(Γ
) (where g
2μ is a scale arising from the saturation of gluons in the nuclear wave function) is shown to be robust over a wide range of
initial amplitudes that violate boost invariance. We argue that this growth is due to a non-Abelian Weibel instability, the
scale of which is set by a dynamically generated plasmon mass. We discuss the relation of Γ to the prediction from kinetic
theory. |
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Keywords: | 25 75 Nq Quark deconfinement quark-gluon plasma production and phase transitions 11 10 Wx Finite-temperature field theory 12 38 Mh Quark-gluon plasma |
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