Heavy quarkonium moving in hot and dense deconfined nuclear matter

Understand

We study the behavior of the complex potential between a heavy quark and its antiquark, which are in relative motion with respect to a hot and dense medium.

• The heavy quark-antiquark complex potential is obtained by correcting both the Coulombic and the linear terms in the Cornell potential through a dielectric function estimated within the real-time formalism using the hard thermal loop approximation.
• We show the variation of both the real and the imaginary parts of the potential for different values of velocities when the bound state ($ Q\bar{Q}$ pair) is aligned in the direction parallel as well as perpendicular to the relative velocity of the $ Q\bar{Q}$ pair with the thermal medium.
• With an increase of the relative velocity the screening of the real part of the potential becomes weaker at short distances and stronger at large distances for the parallel case.