1 research outputs found
S, T, U parameters in model with right-handed neutrinos
The S, T, U parameters in the model with
right -handed neutrinos are calculated. Explicit expressions for the oblique
and Z - Z' mixing contributions are obtained. We show that the bilepton oblique
contributions to S and T parameters are bounded : and . The Z - Z' mixing contribution is positive and above 10%, but it will
increase fastly with the higher Z' mass. %can be negative. The consequent mass
splitting of the bilepton is derived and to be 15%. The limit on the mass of
the neutral bilepton in this model is obtained.Comment: Latex, axodraw.sty used, 3 figures, 18 page