Moving Quark in a Viscous Fluid

Details Moving Quark in a Viscous Fluid Moving Quark in a Viscous Fluid

2012-02-13

arxiv.org/abs/1202.2737v3

Physics

High Energy Physics

High Energy Physics - Theory

33 pages, 6 figures, references added

Scientific paper

To study the rate of energy and momentum loss of a heavy quark in QGP, specifically in the hydrodynamic regime, we use fluid/gravity duality and construct a perturbative procedure to find the string solution in gravity side. We show that by this construction, the position of the world-sheet horizon and thereby the drag force exerted on the quark can be computed perturbatively, order by order in a boundary derivative expansion, for a wide range of quark velocities. At ideal order, our result is just the localized expression of the drag force exerted on a moving quark in thermal plasma, while for a quark whose velocity does not belong to the mentioned range, we predict a nonlocal drag force. Furthermore, we apply this procedure to a transverse quark in Bjorken flow and compute the first-derivative corrections, namely viscous corrections, to the drag force. We show that the diffusion time depends on the initial momentum of the transverse quark.

Affiliated with

Also associated with

No associations

Rating

Moving Quark in a Viscous Fluid 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 Moving Quark in a Viscous Fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving Quark in a Viscous Fluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-682339