A Random Walk with Heavy Flavours

<table>Drag coefficients of charm and bottom with their momentum at <svg height="11.825" id="M99" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 55.349998 11.825" width="55.349998" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> MeV assuming running strong coupling, <svg height="16.4125" id="M100" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 37.950001 16.4125" width="37.950001" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>, and temperature-dependent Debye screening mass, <svg height="16.275" id="M101" style="vertical-align:-3.27605pt" version="1.1" viewbox="0 0 46.799999 16.275" width="46.799999" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> for gluon, quark, and antiquark scattering.</table>

Advances in High Energy Physics

A Random Walk with Heavy Flavours

Figure 1