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arXiv · 2407.02064

Benchmarking $\Lambda$NN three-body forces and first predictions for A=3-5 hypernuclei

Hoai Le·Johann Haidenbauer·Hiroyuki Kamada·Michio Kohno·Ulf-G. Meißner·Kazuya Miyagawa·Andreas Nogga
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Abstract

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 {\Lambda}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 $\Lambda$NN forces to the separation energies in A=3-5 hypernuclei are reported.

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Hoai Le, Johann Haidenbauer, Hiroyuki Kamada, Michio Kohno, Ulf-G. Meißner, Kazuya Miyagawa, Andreas Nogga. 2024-07-02. Benchmarking $\Lambda$NN three-body forces and first predictions for A=3-5 hypernuclei. https://arxiv.org/abs/2407.02064

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