We present a global relativistic optical model for p+40Ca consisting of Lorentz scalar and vector potentials parametrized as a function of energy. The shapes chosen are Woods-Saxons for the real potentials, and a linear combination of Woods-Saxons and derivative Woods-Saxons for the imaginary potentials. © 1988.
Cooper, E. D., Clark, B. C., Hama, S., & Mercer, R. L. (1988). Dirac-global fits to calcium elastic scattering data in the range 21-200 MeV. Physics Letters B, 206(4), 588–591. https://doi.org/10.1016/0370-2693(88)90701-0