1. Few-nucleon systems with state-of-the-art chiral nucleon-nucleon forces.
- Author
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Binder, S., Calci, A., Epelbaum, E., Furnstahl, R. J., Golak, J., Hebeler, K., Kamada, H., Krebs, H., Langhammer, J., Liebig, S., Maris, P., Meißner, Ulf-G., Minossi, D., Nogga, A., Potter, H., Roth, R., Skibiński, R., Topolnicki, K., Vary, J. P., and Witała, H.
- Subjects
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ATOMIC nucleus , *NUCLEON-nucleon interactions - Abstract
We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors to study nucleon-deuteron (Nd) scattering and selected low-energy observables in ³H,4He, and 6Li. Calculations beyond second order differ from experiment well outside the range of quantified uncertainties, providing truly unambiguous evidence for missing three-nucleon forces within the employed framework. The sizes of the required three-nucleon-force contributions agree well with expectations based on Weinberg's power counting. We identify the energy range in elastic Nd scattering best suited to study three-nucleon-force effects and estimate the achievable accuracy of theoretical predictions for various observables. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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