Some phenomenological aspects of theSU(2)q×SU(2)l×U(1)Ymodel

We examine the implications of the recently proposed un-unified $\mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_q\times \mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_l\times \mathrm{U}{\mathrm{}\left(1\right)\mathrm{}}_Y$ model for the extra-gauge-boson decay widths and hadronic production rates, the $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}$ and $b\overline{b}$ asymmetries, the $B$-meson semileptonic branching fraction, $B^0-{\overline{B}}^0$ mixing, and the $\mathrm{CP}$-violating parameter $\epsilon$. A perturbative requirement gives the bound $sin\phi \gtrsim 0.22$ on the new mixing angle. Current searches at the Fermilab Tevatron collider for an extra $Z$ boson can place a mass bound $M_{Z_H}\gtrsim 250$ GeV. The hadronic decays of $W_H$, $Z_H$ produced in $\overline{p}p$ collisions may be observable as enhancements in the two-jet invariant-mass distribution. The enhanced low-energy nonleptonic interaction improves the agreement with experiment of the predicted $B$-meson semileptonic branching fraction.