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arXiv · 1010.3725

Bottomonium above deconfinement in lattice nonrelativistic QCD

G. Aarts·S. Kim·M. P. Lombardo·M. B. Oktay·S. M. Ryan·D. K. Sinclair·J. -I. Skullerud
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Abstract

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

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G. Aarts, S. Kim, M. P. Lombardo, M. B. Oktay, S. M. Ryan, D. K. Sinclair, J. -I. Skullerud. 2010-10-18. Bottomonium above deconfinement in lattice nonrelativistic QCD. https://doi.org/10.1103/physrevlett.106.061602

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