A relativistic wave equation for the Skyrmion

We propose a relativistically invariant wave equation for the Skyrme soliton. It is a differential equation on the space R1,3×S3R1,3×S3 which is invariant under the Lorentz group and isospin. The internal variable valued in SU(2)≡S3SU(2)≡S3 describes the orientation of the soliton. The mass of a particle of spin and isospin both equal to j=12,32… is predicted to be M=m1+K2j(j+1)1+K1j(j+1) which agrees with the known spectrum for low angular momentum. The iso-scalar magnetic moment is predicted to be -K14mΣ, where ΣΣ is the spin.