Jet quenching parameters of Sakai-Sugimoto Model

Details Jet quenching parameters of Sakai-Sugimoto Model Jet quenching parameters of Sakai-Sugimoto Model

2006-11-20

arxiv.org/abs/hep-th/0611217v2

Physics

High Energy Physics

High Energy Physics - Theory

some errors are corrected and part of the original conclusions are revised

Scientific paper

Using gauge theory/string duality, we calculated the jet quenching parameter $\hat{q}$ of the Sakai-Sugimoto model in various phases. Being different from the $\mathcal{N}=4$ SYM theory where $\hat{q}\propto T^3$, we find that $\hat{q}\propto T^4/T_d$, where $T_d$ is the critical temperature of the confined/deconfined phase transition. By analyzing the $\hat{q}$ in different phases of this theory, we get better understanding about some statements in previous works, such as the non-universality and the explanation of discrepancies between the theory predictions and experiments.

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