Limit onWL−WRmixing in theSU(2)L×SU(2)Rmodel

Abstract

An upper limit of 0.005 on the $W_L-W_R$ mixing angle in the $\mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_L\times \mathrm{SU}{\mathrm{}\left(2\right)\mathrm{}}_R\times \mathrm{U}\mathrm{}\left(1\right)\mathrm{}$ model is derived using semileptonic-decay data. This limit is possible because of the recent data on $B$ decays, provided we assume only three generations.