  The analysis of data on hyperon transverse momentum distributions, dN/dPt,
that were gathered from various experiments (ISR, STAR, UA1, UA5 and CDF)
reveals an important difference in the dynamics of multiparticle production in
proton-proton vs. antiproton-proton collisions in the region of transverse
momenta 0.3 GeV/c < Pt < 3 GeV/c. Hyperons produced with proton beams display
the sharp exponential slope at low Pt, while spectra prodused with antiproton
beam don't. Since LHC experiments have proton projectiles, the spectra of
baryon production should seem "softer" in comparison to expectations, because
the Monte Carlo simulations were based on the Tevatron antiproton-proton data.
From the point of view of Quark-Gluon String Model, the most important
contribution into the particle production spectra goes from antidiquark-diquark
string fragmentation that exists only in the topological diagram for
antiproton-proton collisions and is a very interesting object for investigation
even at lower energies. This study may have an impact not only on
interpretation of LHC results, but also on the cosmic ray physics and
astrophysics, where the baryon contribution into matter-antimatter asymmetry is
being studied.
