  Motivated by the success of Modified Non-Relativistic Quantum Chromodynamics
(Modified NRQCD) in explaining data from experiments at the Large Hadron
Collider (LHC) for charmonia, we now turn to the study of bottomonium
production at the LHC. Modified NRQCD does very well in explaining $\Upsilon$
data from the LHC. But this is true also of NRQCD which explains the $\Upsilon$
data equally well. Where the two models differ substantially is in their
predictions for $\eta_b$ production. As was the case with $\eta_c$, the
measurement of $\eta_b$ production at the LHC will be another decisive test of
Modified NRQCD.
