Right-right-left extension of the standard model

Abstract

A right-right-left extension of the standard model is proposed. In this model, the standard model gauge group $SU(2{)}_L\otimes U(1{)}_Y$ is extended to $SU(2{)}_L\otimes SU(2{)}_R\otimes SU(2{)}_R^{\prime }\otimes SU(2{)}_L^{\prime }\otimes U(1{)}_Y$. The gauge symmetries $SU(2{)}_R^{\prime }$, $SU(2{)}_L^{\prime }$ are the mirror counter-parts of the $SU(2{)}_L$ and $SU(2{)}_R$ respectively. Parity is spontaneously broken when the scalar Higgs fields acquire vacuum-expectation values in a certain pattern. Parity is restored at the scale of $SU(2{)}_L^{\prime }$. The gauge sector has a unique pattern. The scalar sector of the model is optimum, elegant and unique.

Comments: 11 pages, a few typos are corrected, matches with to be published version in Mod.Phys.Lett. A