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

Abstract

A version of the $\text{mbox}{SU(3)}_L\otimes \text{mbox}{U(1)}_N$ 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 $\varphi$ as $-0.00285\le \varphi \le 0.00018$. 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.

Comments: 13 pages, latex, no figures, Presented at the 2nd Recontres du Vietnam - Physics at the Frontiers of the Standard Model, Ho Chi Minh City, Vietnam, 21-28 October 1995