Bottomonium above deconfinement in lattice nonrelativistic QCD
Abstract
We study the temperature dependence of bottomonium for temperatures in the range 0.4 Tc < T < 2.1 Tc, using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for Nf=2 light flavors on a highly anisotropic lattice. We find that the is insensitive to the temperature in this range, while the b propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behaviour consistent with nearly-free dynamics at T 2 Tc.
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