Drag force on a moving heavy quark with deformed string configuration
arXiv:2004.12056 · doi:10.1088/1572-9494/ac6092
Abstract
To study drag force on a moving heavy quark through a plasma, we use a deformed AdS space-time, in which deformation parameter describes non-conformality in AdS/QCD. In this case the quark is mapped to a probe string in the AdS space. Considering probable contribution of deformation parameter in the probe string, we apply a general form of c-dependent string ansatz in the drag force computation. Then we find the acceptable value of this parameter as it satisfies QCD calculations. Using this result, we also discuss diffusion constant which is in agreement with phenomenological result for non-relativistic limit. Also we show that while in absence of deformation parameter, probe string is a strictly increasing function of radial coordinate, the c-dependent probe string has a maximum value versus .
arXiv comment18 pages, 4 figures
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