Bottomonium above deconfinement in lattice nonrelativistic QCD

Abstract

We study the temperature dependence of bottomonium for temperatures in the range $0.4T_c<T<2.1T_c$, 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 ${\rm Y}$ is insensitive to the temperature in this range, while the ${\chi }_b$ propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behaviour consistent with nearly-free dynamics at $T\simeq 2T_c$.

4 pages, 3 figures

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• Intermediate distance correlators in hot Yang-Mills theory
• NRQCD based S- and P-wave bottomonium spectra at finite temperature from $48^3\times 12$ lattices with $N_f=2+1$ light HISQ flavors
• Quark mass dependence of quarkonium properties at finite temperature
• Two topics from lattice NRQCD at non-zero temperature: heavy quark mass dependence and S-wave bottomonium states moving in a thermal bath
• Lattice NRQCD study on in-medium bottomonium spectra using a novel Bayesian reconstruction approach
• Quark-Gluon Plasma: from lattice simulations to experimental results
• Heavy Flavours in Quark-Gluon Plasma
• Bottomonium in the plasma: lattice results