Right-handed neutrino currents in the SU(3)L x U(1)N electroweak theory

A version of the SU(3)L x U(1)N electroweak theory in which there are right-handed neutrino currents is reconsidered in detail. It is argued that in order to have a result consistent with low-energy one, the right-handed neutrino component must be treated as correction instead of an equivalent spin state. The data from the Z-decay allow us to fix the limit for φ as -0.00285 ≤ φ ≤ 0.00018. From the neutrino neutral current scattering, we estimate a bound for the new neutral gauge boson Z2 mass in the range of 400 GeV. A bound for the new charged and neutral (non-Hermitian) gauge bosons Y±,X0 is also obtained from symmetry-breaking hierarchy. (author)