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arXiv · 1108.1579

Complex Heavy-Quark Potential at Finite Temperature from Lattice QCD

Alexander Rothkopf·Tetsuo Hatsuda·Shoichi Sasaki
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Abstract

We calculate for the first time the complex potential between a heavy quark and antiquark at finite temperature across the deconfinement transition in lattice QCD. The real and imaginary part of the potential at each separation distance $r$ is obtained from the spectral function of the thermal Wilson loop. We confirm the existence of an imaginary part above the critical temperature $T_C$, which grows as a function of $r$ and underscores the importance of collisions with the gluonic environment for the melting of heavy quarkonia in the quark-gluon-plasma.

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Alexander Rothkopf, Tetsuo Hatsuda, Shoichi Sasaki. 2012-04-13. Complex Heavy-Quark Potential at Finite Temperature from Lattice QCD. https://doi.org/10.1103/physrevlett.108.162001

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