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Heavy Quarkonia at High Temperature

Jochen Fingberg
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Abstract

We present a new method to study the properties of heavy quarks at finite temperature. It combines non-relativistic QCD with an improved gluonic action on anisotropic lattices. The efficiency of the approach is demonstrated by the first non-perturbative calculation of the temperature dependence of low-lying quarkonium "pole" masses. For ground state meson masses in the region between charmonium and bottomonium we find only very little variation up to our highest temperature which corresponds to T approximately 1.2 Tc while first excited states indicate a large mass shift.

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Jochen Fingberg. 1997-07-15. Heavy Quarkonia at High Temperature. https://doi.org/10.1016/s0370-2693(98)00205-6

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