Variants of the Dark Left-Right Gauge Model: Neutrinos and Scotinos

Abstract

In the recently proposed dark left-right gauge model (DLRM) of particle interactions, the usual left-handed lepton doublet (nu,e)_L transforming under SU(2)_L is accompanied by the UNUSUAL right-handed fermion doublet (n,e)_R transforming under SU(2)_R, where n_R is NOT the Dirac mass partner of nu_L. In this scenario, whereas nu_L is certainly a neutrino, n_R should be considered a SCOTINO, i.e. a dark-matter fermion. Variants of this basic idea are discussed, including its minimal SCOTOGENIC realization.

Comments: 9 pages, 1 figure, 2 references added