Nuclear Forces from Effective Field Theory |
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Authors: | Hermann Krebs |
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Affiliation: | 1. Institute of Theoretical Physics II, Ruhr-Universit?t Bochum, 44780, Bochum, Germany
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Abstract: | Chiral effective field theory allows for a systematic and model-independent derivation of the forces between nucleons in harmony with the symmetries of the quantum chromodynamics. After a brief review on the current status in the development of the chiral nuclear forces I will focus on the role of the ??-resonance contributions in the nuclear dynamics. We find improvement in the convergence of the chiral expansion of the nuclear forces if we explicitly take into account the ??-resonance degrees of freedom. The overall results for two-nucleon forces with and without explicit ??-resonance degrees of freedom are remarkably similar. |
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