Higgsless deconstruction without boundary condition

摘要

Deconstruction is a powerful means to explore the rich dynamics of gauge theories in four and higher dimensions. We demonstrate that gauge symmetry breaking in a compactified higher dimensional theory can be formulated via deconstructed 4D moose theory with. spontaneous symmetry breaking and without boundary condition. The proper higher-D boundary conditions are automatically induced in the continuum limit rather than being imposed. We identify and analyze the moose theories which exhibit delayed unitarity violation (effective unitarity) as a collective effect of many gauge groups, without resorting to any known 5D geometry. Relevant phenomenological constraints axe also addressed.