Right Handed Neutrino Currents in the SU(3)_LxU(1)_N Electroweak Theory

TL;DR

This paper explores a version of the SU(3)_L x U(1)_N electroweak theory incorporating right-handed neutrino currents, analyzing experimental constraints to estimate bounds on new gauge bosons and parameters.

Contribution

It provides a detailed analysis of right-handed neutrino currents in the SU(3)_L x U(1)_N model, including experimental bounds on new gauge bosons and mixing parameters.

Findings

Limits on the mixing angle φ: -0.00285 to 0.00018.

Estimated mass bounds for Z' boson: around 400 GeV.

Constraints on new charged and neutral gauge bosons from symmetry-breaking hierarchy.

Abstract

A version of the $\mbox{SU(3)}_L\otimes \mbox{U(1)}_N$ electroweak theory in which there are right-handed neutrino currents is reconsidered in detail. We argue 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 $\phi$ as $-0.00285 \leq \phi \leq 0.00018$. From the neutrino neutral current scattering, we estimate a bound for the new neutral gauge boson $Z^2$ mass in the range of 400 GeV. A bound for the new charged and neutral (non-Hermitian) gauge bosons $Y^{\pm}, X^o$ is also obtained from symmetry-breaking hierarchy.