Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-04-30
Phys.Lett.B670:150-153,2008
Physics
High Energy Physics
High Energy Physics - Theory
9 pages, v2:comments and references added
Scientific paper
10.1016/j.physletb.2008.10.043
We consider an analog of e^+e^- annihilation in gauge theories which have a dual string description in asymptotically AdS_5 space and discuss the nature of jet fragmentation. We construct the timelike anomalous dimension which governs the scale dependence of the fragmentation function. In the limit of infinite 't Hooft coupling, the average multiplicity rises linearly with the energy and the inclusive spectrum is peaked at the kinematical boundary.
Hatta Yoshitaka
Matsuo Toshihiro
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