https://doi.org/10.1140/epja/s10050-024-01474-5
Regular Article - Theoretical Physics
Benchmarking 
NN three-body forces and first predictions for 
hypernuclei
1
Institute for Advanced Simulation (IAS-4), Forschungszentrum Jülich, 52425, Jülich, Germany
2
Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, 804-8550, Kitakyushu, Japan
3
Research Center for Nuclear Physics, Osaka University, 567-0047, Ibaraki, Japan
4
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, 53115, Bonn, Germany
5
CASA, Forschungszentrum Jülich, 52425, Jülich, Germany
Received:
3
July
2024
Accepted:
14
December
2024
Published online:
1
February
2025
Explicit expressions for the leading chiral hyperon-nucleon-nucleon three-body forces have been derived by Petschauer et al (Phys Rev C93:014001, 2016). An important prerequisite for including these three-body forces in few- and many-body calculations is the accuracy and efficiency of their partial-wave decomposition. A careful benchmark of the 
NN potential matrix elements, computed using two robust and efficient partial-wave decomposition methods, is presented. In addition, results of a first quantitative assessment for the contributions of 
NN forces to the separation energies in hypernuclei are reported.
© The Author(s) 2025
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