
May 11 2012
CTMP lunch Seminar (Centre for Theoretical & Mathematical Physics (UCT)
The next CTMP lunch seminar, Friday May 11th, 12:30 pm, (Duncan Elliott seminar room, R.W. James @ UCT) will be given by Razieh Morad
TITLE: Light Quark Energy Loss via AdS/CFT
R. Morad and W. A. Horowitz
Energy loss of a light quark is studied by considering an open string with pointlike initial conditions in the AdSSch background. We investigate calculations in which the jet is defined as the part of string between the endpoint and such that the spatial distance between the projection of these points to the boundary is of order . We also examine the energy lost when defining the jet as the part of the string between the end point and a point at a constant radial coordinate near the horizon, which we think might be a better approximation to heavy ion jet observables. On the other hand, since the QGP is an expanding plasma and cools down with time, we consider a geometry dual to an expanding plasma (a boostinvariant geometry) to study the light quark energy loss.
Literature:
1) "Drag force in AdS/CFT" Steven S. Gubser
http://arxiv.org/abs/hepth/0605182
2) Light quark energy loss in stronglycoupled N = 4 supersymmetric YangMills plasma Paul M. Chesler, Kristan Jensen, Andreas Karch, Laurence G. Yaffe
http://arxiv.org/abs/arXiv:0810.1985
3) AdS/CFT Energy Loss in TimeDependent String Configurations Andrej Ficnar
http://arxiv.org/abs/1201.1780
All welcome,
For more information please contact
Heribert Weigert

phone: +27 21 650 4706; fax: +27 21 650 3342;
email: heribert.weigert@uct.ac.za; heribert.weigert@physik.unir.de;
postal: A/Prof. H. Weigert, director CTMP, University of Cape Town;
Dept. of Physics, Private Bag X3, Rondebosch 7701, South Africa;
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