The N4LO contact three-nucleon force couplings extracted from three-nucleon scattering produce excessively large contributions to nuclear and neutron matter energies, indicating they are not directly transferable to infinite matter.
Chiral NN model and Ay puzzle
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abstract
We analyze the results by chiral NN models for the two-nucleon system and calculate the predictions for the nucleon vector analyzing power of elastic nucleon-deuteron (Nd) scattering, Ay, by these models. Our conclusion is that a QUANTITATIVE chiral two-nucleon potential does not resolve the Nd Ay puzzle (when only two-body forces are included).
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Analysis of the strengths of the contact potential at N4LO through nuclear and neutron matter
The N4LO contact three-nucleon force couplings extracted from three-nucleon scattering produce excessively large contributions to nuclear and neutron matter energies, indicating they are not directly transferable to infinite matter.