  A model of $pp$ and $\bar{p}p$ elastic scattering developed previously to
analyze ISR and SPS Collider data is extended to predict $pp$ elastic
differential cross section at LHC at c.m. energy of 14 TeV and momentum
transfer range $|t|=0$ - 10 GeV$^2$. Role of the gauged linear $\sigma$-model
as an underlying field theory model describing nucleon structure and elastic
scattering is discussed. Possibility of finding evidence of a chiral phase
transition at large $|t|$ in the proposed TOTEM project at LHC is pointed out.
