Bottomonium at Non-zero Temperature from Lattice Non-relativistic QCD
  The temperature dependence of bottomonium states at temperatures above and below $T_c$ is presented, using non-relativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for two light flavors on a highly anisotropic lattice. We find that the S-waves ($\Upsilon$ and $\eta_b$) show little temperature dependence in this range while the P wave propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly-free dynamics at approximately twice the critical temperature. 
Gert Aarts, Chris Allton, Seyong Kim, Maria Paola Lombardo, Mehmet B.   Oktay, Sinead M. Ryan, D. K. Sinclair, Jon-Ivar Skul...
hep-ph hep-ex hep-lat