Chiral symmetry and the nucleon-nucleon interaction
We review how nuclear forces emerge from low-energy quantum chromodynamics (QCD) via chiral effective field theory (EFT). During the past two decades, this approach has evolved into a powerful tool to derive nuclear two- and many-body forces in a systematic and model-independent way. We then focus on the nucleon-nucleon (NN) interaction and show in detail how, governed by chiral symmetry, the long- and intermediate-range of the NN potential builds up order by order. We proceed up to sixth order in small momenta, where convergence is achieved. Lastly, the final result allows for a full assessment of the validity of the chiral EFT approach to the NN interaction.
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- Journal Volume: 8; Journal Issue: 4; Journal ID: ISSN 2073-8994
- Research Org:
- Regents of the University of Idaho, Moscow, ID (United States)
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- Country of Publication:
- United States
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS low-energy quantum chromodynamics (QCD); effective field theory; chiral perturbation theory; nucleon-nucleon scattering; nucleon-nucleon potentials
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