Perturbative Treatment of Three-Nucleon Force Contact Terms in Three-Nucleon Faddeev Equations

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...

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Published in:Few-body systems 2021-06, Vol.62 (2), Article 23
Main Authors: Witała, H., Golak, J., Skibiński, R., Topolnicki, K.
Format: Article
Language:English
Subjects:
Atomic
Celebrating 30 years of the Steven Weinberg’s paper Nuclear Forces from Chiral Lagrangians
Deuterons
Elastic scattering
Faddeev equations
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Nucleons
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
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cited_by cdi_FETCH-LOGICAL-c363t-cd4d1203d4fbdf2d76890e922ddc4c0ae0211aefd88a253c554f0b025c0062b93
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creator Witała, H.
Golak, J.
Skibiński, R.
Topolnicki, K.
description 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.
doi_str_mv 10.1007/s00601-021-01607-2
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subjects Atomic
Celebrating 30 years of the Steven Weinberg’s paper Nuclear Forces from Chiral Lagrangians
Deuterons
Elastic scattering
Faddeev equations
Hadrons
Heavy Ions
Molecular
Nuclear Physics
Nucleons
Optical and Plasma Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
title Perturbative Treatment of Three-Nucleon Force Contact Terms in Three-Nucleon Faddeev Equations
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