Generalizations and UV completions of Cho–Maison monopole

A

bstract

A monopole configuration in the electroweak theory was constructed by Cho and Maison [1], allowing for a singular behavior at the origin. Since the essential structure of the Cho–Maison monopole is based on an electroweak-type symmetry breaking, similar monopole configurations are expected to arise more generally in gauge theories containing such a structure. In this paper, we explicitly show that Cho–Maison-like monopole configurations can indeed be constructed in a broad class of models. We also show that the Cho–Maison monopole can be embedded into an ’t Hooft–Polyakov monopole as its low-energy effective description. In particular, we find that a monopole in the Pati–Salam model behaves as the electroweak Cho–Maison monopole once degrees of freedom which are heavier than the electroweak scale are integrated out.