Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-08-27
Nucl.Phys.B835:221-237,2010
Physics
High Energy Physics
High Energy Physics - Theory
21 pages, 11 figures, NPB version, corrections to the effects of higher derivative terms
Scientific paper
10.1016/j.nuclphysb.2010.04.006
We consider a rotating quark-antiquark $(q\bar{q})$ pair in $\mathcal{N}=4$ thermal plasma. By using AdS/CFT correspondence, the properties of this system have been investigated. We study variation of rotating string radius at the boundary as a function of the tip of U-shape string and angular velocity of rotating meson. We also extend the results to the higher derivative corrections i.e. ${\cal{R}}^2$ and ${\cal{R}}^4$ which correspond to finite coupling corrections on the rotating quark-antiquark system in the hot plasma. In ${\cal{R}}^4$ case and for fixed angular velocity as $\lambda^{-1}$ decreases the string endpoints get more and more separated. To study ${\cal{R}}^2$ corrections, rotating quark-antiquark system in Gauss-Bonnet background has been considered. We summarize the effects of these corrections in the conclusion section.
Ali-Akbari Mohammad
Fadafan Kazem Bitaghsir
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