Is the t Quark Responsible for the Mass of W and Z Bosons?
Abstract
Based on the dynamical model having a large anomalous dimension γ_{m}_{≃}2, we propose that the t quark condensate is responsible for the mass of W and Z bosons within the framework of the SU(3)_{C}×SU(2)_{L}×U(1)_{Y} gauge theory (without Higgs) plus fourfermion interactions among quarks and leptons. This accounts for the largeness of the t quark mass m_{t} without violating the weakisospin relation ρ ≡ {{m_{W2} } {/ { {{m_{W2} } {m_{Z2} }}} ; } {m_{Z2} }} cos ^{2} θ _{W} ∼= 1. Quark/lepton mass matrices are obtained through the fourfermion interactions, which yields no serious flavorchanging neutral currents. The model predicts a (bar {t}t) composite scalar meson with a mass ≃2m_{t}. A possibility for an unusual resolution of the strong CP problem is also suggested.
 Publication:

Modern Physics Letters A
 Pub Date:
 1989
 DOI:
 10.1142/S0217732389001210
 Bibcode:
 1989MPLA....4.1043M