  We study the bottomonium spectrum in the nonrelativistic quark model with the
coupled-channel effects. The mass shifts and valence $b\bar{b}$ component are
evaluated to be rather large. We find that the hadronic loop effects can be
partially absorbed into a reselection of the model parameters. No bottomonium
state except $\Upsilon(5\,^1S_0)$ and $\Upsilon(5\,^3S_1)$ with mass around
10890 MeV is found in the quark models both with and without coupled-channel
effects, so we suggest that $Y_{b}(10890)$ is an exotic state beyond the quark
model, if it is confirmed to be a new resonance. The predictions for the
$\chi_b(3P)$ masses are consistent with the ATLAS measurements. If some new
bottomonium-like states are observed at LHCb or SuperB in the future, we can
determine whether they are conventional bottomonium or exotic states by
comparing their masses with the mass spectrum predicted in our work.

High Energy Physics - Phenomenology