Weak interactions of thebquark

Abstract

In weak-interaction models with two charged $W$ bosons of comparable mass, there exists a novel possibility for the weak interactions of the $b$ quark, in which the ${(\overline{u}b)}_{R}$ current occurs with maximal strength. It is noted that multimuon production in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation at above ${Q}^{2}\ensuremath{\gtrsim}{(12 \mathrm{GeV})}^{2}$ will distinguish this scheme from the conventional one. We also present a Higgs system that leads naturally to this type of coupling, in a class of gauge models.