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nucl-th2019★ 3 cited
Isospectral scattering for relativistic equivalent Hamiltonians on a coarse momentum grid
María Gómez-Rocha, Enrique Ruiz Arriola
The scattering phase-shifts are invariant under unitary transformations of the Hamiltonian. However, the numerical solution of the scattering problem that requires to discretize th…
nucl-th2019★ 5 cited
Spectral-shift and scattering-equivalent Hamiltonians on a coarse momentum grid
María Gómez-Rocha, Enrique Ruiz Arriola
The solution of the scattering problem based on the Lippmann-Schwinger equation requires in many cases a discretization of the spectrum in the continuum which does not respect the…