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Bethe-Salpeter Equation for Nucleon-Nucleon Scattering Matrix Padé Approximants
Phys. Rev. D 7, 565 – Published 15 January, 1973
DOI: https://doi.org/10.1103/PhysRevD.7.565
Abstract
We first show that the so-called "kernel subtraction" technique which we used in a previous paper on the Bethe-Salpeter equation is unnecessary. The simplified equations which result make it possible to introduce matrix Padé approximants in a straightforward way. These are found to converge to the same solution that we found in our previous work and more rapidly than the ordinary Padé approximants.
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