  A recent preliminary investigation based on Durgut's report at the American
Physical Society site shows a structure at $18.4~ {\rm GeV}$ exists in the
invariant mass distribution of $\Upsilon l^+l^- ~ (l = e,\, \mu)$ at the LHC
center-of-mass energy of $7$ and $8~ {\rm TeV}$. Its appearance attracts
attention of theorists and experimentalists of high energy physics, because it
might be a Higgs-like boson of $18.4~ {\rm GeV}$ which would serve as a signal
of the new physics beyond the Standard Model. We have carried out computations
on the corresponding quantities (production and decay rates) based on quantum
field theory and compared the results with experimental data. Our numerical
results do not support the assertion that the $18.4~ {\rm GeV}$ peak
corresponds to a neutral $0^{++}$ boson which decays into $\Upsilon l^+l^-$.
Much further works (both experimental and theoretical) are badly needed.
