  We develop a Monte-Carlo event generator based on combination of a parton
production formula including the effects of parton saturation (called the DHJ
formula) and hadronization process due to the Lund string fragmentation model.
This event generator is designed for the description of hadron productions at
forward rapidities and in a wide transverse momentum range in high-energy
proton-proton collisions. We analyze transverse momentum spectra of charged
hadrons as well as identified particles; pion, kaon, (anti-)proton at RHIC
energy, and ultra-forward neutral pion spectra from LHCf experiment. We compare
our results to those obtained in other models based on parton-hadron duality
and fragmentation functions.
