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arXiv · 1804.05517

Drag force in a D-instanton background

Zi-qiang Zhang·Zhong-jie Luo·De-fu Hou
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Abstract

We study the drag force and diffusion coefficient with respect to a moving heavy quark in a D-instanton background, which corresponds to the Yang-Mills theory in the deconfining, high-temperature phase. It is shown that the presence of the D-instanton density tends to increase the drag force and decrease the diffusion coefficient, reverse to the effects of the velocity and the temperature. Moreover, the inclusion of the D-instanton density makes the medium less viscous.

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Zi-qiang Zhang, Zhong-jie Luo, De-fu Hou. 2018-04-16. Drag force in a D-instanton background. https://doi.org/10.1016/j.nuclphysa.2018.03.004

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