  Within a chiral quark sigma model in which quarks interact via the exchange
of sigma and pi-mesons, hadron properties are investigated. This model of the
nucleon and delta is based on the idea that strong QCD forces on very short
distances (a small length scales 0.2- 1 fm) result in hidden chiral SU(2)xSU(2)
symmetry and that there is a separation of roles between these forces which are
responsible for binding quarks in hadrons and the forces which produce absolute
confinement. We have solved the field equations in the mean field approximation
for the hedgehog baryon state with different sets of model parameters. A new
parametrization which well describe the nucleon properties has been introduced
and compared with experimental data.
