Momentum broadening in an anisotropic plasma
By Paul Romatschke. 2006
139 citations recorded by the source corpus.
The rates governing momentum broadening in a quark-gluon plasma with a momentum anisotropy are calculated to leading-log order for a heavy quark using kinetic theory. It is shown how the problematic singularity for these rates at leading order is lifted by next-to-leading-order gluon self-energy corrections to give a finite contribution to the leading-log result. The resulting rates are shown to lead to larger momentum broadening along the beam axis than in the transverse plane, which is consistent with recent STAR results. This might indicate that the quark-gluon-plasma at RHIC is not in equilibrium.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/38a30858d383baeea5f41d92ac16d1c4af193e61
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In Nuclear and High Energy Physics
Citations in the corpus
- Collective Phenomena in the Non-Equilibrium Quark-Gluon Plasma (2008, background): “For comparison, on the right plot an ellipse with eccentricity e ≃ √ 8 3 which corresponds to a ratio √ κz/κ⊥ ∼ 3 is shown [223].”