paper

Skyrme and Faddeev models in the low-energy limit of 4d Yang-Mills-Higgs theories

arXiv:1808.08972 · doi:10.1016/j.nuclphysb.2019.114675

Abstract

Firstly, we consider Yang-Mills theory on with an adjoint Higgs field spontaneously breaking a compact gauge group to a subgroup , so that the Higgs vacuum manifold forms the coset . It is shown that in the low-energy limit, when the Higgs vacuum value is large, the 4d Yang-Mills-Higgs theory reduces to the Faddeev sigma model on with as target. Its action contains the standard two-derivative sigma-model term as well as the four-derivative Skyrme-type term, which stabilizes solutions against scaling. Secondly, we put the Higgs field in the bi-fundamental representation of , realizing the simplest -type quiver gauge theory. Breaking to , the vacuum manifold is a group. In this case, when the Higgs vacuum value is large, the 4d -quiver gauge theory reduces to the Skyrme sigma model on with U as target. Thus, both the Skyrme and the Faddeev model arise as effective field theories in the infrared of Yang-Mills-Higgs models.

1+11 pages; v2: substantially rewritten with emphasis on cases of non-trivial moduli spaces of vacua

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