Z Flux-Line Lattices and Self-Dual Equations in the Standard Model

Abstract

We derive gauge covariant self-dual equations for the $SU(2) \times U(1)_Y$ theory of electro-weak interactions and show that they admit solutions describing a periodic lattice of Z-strings.} \newpageComment: 10 pages, IC/94/65, INFN-NA-IV-5/9