Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient

Details Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient

2011-09-19

arxiv.org/abs/1109.3941v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages. To appear in the Proceedings of the XXIX International Symposium on Lattice Field Theory, July 10-16, 2011, Squaw Val

Scientific paper

We report on a lattice investigation of heavy quark diffusion within pure SU(3) plasma above the deconfinement transition, with the quarks treated to leading order in the heavy mass expansion. Using a multilevel algorithm, several volumes and lattice spacings, as well as tree-level improvement and perturbative renormalization, we measure the relevant "colour-electric" Euclidean correlator, finding that it clearly exceeds its perturbative counterpart. Even without analytic continuation, this suggests that at temperatures just above the critical one, non-perturbative interactions felt by the heavy quarks are stronger than within the weak-coupling expansion. After introducing rough modelling of the spectral shape, diffusion coefficients down to D ~ 0.5/T appear possible.

Affiliated with

Also associated with

No associations

Rating

Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Towards a non-perturbative measurement of the heavy quark momentum diffusion coefficient will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-96260