The 331 model with right-handed neutrinos

Abstract

We explore some more consequences of the $SU(3{)}_L\otimes U(1{)}_N$ electroweak model with right-handed neutrinos. By introducing the $Z-Z^{\prime }$ mixing angle $\varphi$, the {\it exact} physical eigenstates for neutral gauge bosons are obtained. Because of the mixing, there is a modification to the $Z^1$ coupling proportional to $\sin \varphi$. The data from the $Z$-decay allows us to fix the limit for $\varphi$ as $-0.0021\le \varphi \le 0.000132$. >From the neutrino neutral current scatterings, we estimate a bound for the new neutral gauge boson $Z^2$ mass in the range 300 GeV, and from symmetry-breaking hierarchy a bound for the new charged and neutral (non-Hermitian) gauge bosons $Y^{\pm },X^o$ are obtained.

Comments: Slight changes in section 5, Latex, 16 pages