Nucleon masses in strong magnetic fields
  We compute the variation of the masses of the proton and the neutron induced by the presence of a strong external magnetic field. We discuss the choice of the wave function and different techniques how to apply the magnetic field. The results obtained from a 24 16^2 8 and a 16^2 8^2 lattice are compared with a phenomenological approach. 
H.R. Rubinstein, S. Solomon and T. Wittlich