  Using a recently developed effective field theory for the interactions of
nucleons at non-relativistic energies, we calculate the Coulomb corrections to
proton-proton scattering. Including the dimension-eight derivative interaction
in PDS regularization scheme, we obtain a modified Jackson-Blatt relation for
the scattering lengths which is found to be phenomenologically satisfactory.
The effective range is not modified by Coulomb effects to this order in the
calculation.

Nuclear Theory;High Energy Physics - Phenomenology