Lyndon, why do you refer to the underlying process as the Mossbauer effect? I thought that that was effectively all about coupling the recoiling nucleus to the far greater inertia of the crystal lattice, and hence reducing the energy loss of the emitted photon due to recoil. If you're not coupling to a greater mass (which your equation in terms of the electron mass indicates that you are not) then it surely isn't the Mossbauer effect.

As you say that your paper has been accepted for publication in a peer reviewed journal, I would assume that they would have spotted this, so perhaps I have misunderstood why you are calling it the Mossbauer effect.