Journal of Computer and System Sciences Nov 10, 2021 · The field configuration of the dyon is described by the spherically symmetric ansatz (8a) A a 0 = n a v j ( r ), (8b) A a i = ϵ a i m n m 1 − u ( r ) e r , (8c) ϕ a = n a v h ( r ), where n a = x a / r . We now introduce the dimensionless radial variable ρ = m V r , where m V = e v is the mass of the electrically charged gauge bosons.