Journal
PHYSICAL REVIEW D
Volume 64, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.64.075013
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An extension of the standard model to the local gauge group SU(3)(c)circle times SU(3)(L)circle timesU(1)(X) which is a subgroup of the electroweak-strong unification group E-6 is analyzed. The mass scales, the gauge boson masses, and the masses for the spin-1/2 particles in the model are calculated. The mass differences between the up and down quark sectors, between the quark's and leptons, and between the charged and neutral leptons in one family are explained as a consequence of mixing of the ordinary with exotic fermions implied by the model. By using experimental results we constrain the mixing angle between the two neutral currents and the mass of the additional neutral gauge boson to be - 0.0015 less than or equal to sin theta less than or equal to 0.0048 and M-Z2 greater than or equal to 600 GeV at 95% C.L. The existence of a Dirac neutrino for each family with a mass of the order of the electroweak mass scale is predicted.
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