Historical perspective and future prospects for nuclear interactions

Abstract

The nuclear force is the heart of nuclear physics and, thus, the significance of this force for all of nuclear physics can hardly be overstated. Research on this crucial force has by now spanned eight decades and we are still not done. I will first review the rich history of hope and desperation, which had spin-off far beyond just nuclear physics. Next, I will present the current status in the field which is charcterized by the application of an effective field theory (EFT) that is believed to represent QCD in the low energy regime typical for nuclear physics. During the past two decades, this EFT has become the favorite vehicle to derive nuclear two- and many-body forces. Finally, I will take a look into the future: What developments can we expect from the next decades? Will the 30-year cycles of new and "better" ideas for efficiently describing nuclear forces go on for ever, or is there hope for closure?

38 pages, 15 figures. arXiv admin note: substantial text overlap with arXiv:1608.05978, arXiv:1105.2919

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• Chiral effective field theory and nuclear forces
• Improved nuclear matter calculations from chiral low-momentum interactions
• Accurate nuclear radii and binding energies from a chiral interaction
• Improved chiral nucleon-nucleon potential up to next-to-next-to-next-to-leading order
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• Chiral EFT based nuclear forces: Achievements and challenges
• Four-nucleon force using the method of unitary transformation
• Low-energy neutron-deuteron reactions with N3LO chiral forces