Machine learning S-wave scattering phase shifts bypassing the radial Schrödinger equation

  title={Machine learning S-wave scattering phase shifts bypassing the radial Schr{\"o}dinger equation},
  author={Alessandro Romualdi and Gionni Marchetti},
  journal={The European Physical Journal B},
Phase shifts play a key role in partial wave analysis, and are the crucial quantities for obtaining the scattering amplitude by which the elastic scattering properties of the physical or chemical system of interest can be calculated. In particular, phase shifts δ0 in s-wave, i.e., when the angular momentum number l = 0, are significant for atomic collisions in ultracold regime where the s-wave scattering channel dominates. Moreover, in Coulomb systems the s-wave phase shift allows the δl with l… 

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