BPS Cho-Maison monopole

We present exact solutions to Cho-Maison magnetic monopole in a family of effective electroweak models that have a Bogomol’nyi-Prasad-Sommerfield (BPS) limit. We find that the lower bound to the mass of the magnetic monopole is $M \geq 2\pi v/ g \approx 2.37,,$\mathrm{T}\mathrm{e}\mathrm{V}$$. We argue that this bound holds universally, not just in theories with a BPS limit.