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arXiv · 2102.13408

Perturbative treatment of three-nucleon force contact terms in three-nucleon Faddeev equations

H. Witała·J. Golak·R. Skibiński·K. Topolnicki
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Abstract

We present a perturbative approach to solving the three-nucleon continuum Faddeev equation. This approach is particularly well suited to dealing with variable strengths of contact terms in a chiral three-nucleon force. We use examples of observables in the elastic nucleon-deuteron scattering as well as in the deuteron breakup reaction to demonstrate high precision of the proposed procedure and its capability to reproduce exact results. A significant reduction of computer time achieved by the perturbative approach in comparison to exact treatment makes this approach valuable for fine-tuning of the three-nucleon Hamiltonian parameters.

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H. Witała, J. Golak, R. Skibiński, K. Topolnicki. 2021-02-26. Perturbative treatment of three-nucleon force contact terms in three-nucleon Faddeev equations. https://doi.org/10.1007/s00601-021-01607-2

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