On chiral fermion fields at high energies

Adequate expansion of the Dirac fields over chiral components is found in the field theory with ''fundamental mass'', a new universal parameter. In the high energy region E >or approx. M it differs essentially from the standard expansion ψ=ψ=L+ψR=1+y5/2ψ+1-y5/2ψ. The new concept of chiral fermion fields can be used in generalising the electroweak Salam-Weinberg-Glashow model along the lines of the fundamental mass theory