1. Minimally non-local nucleon-nucleon potentials with chiral two-pion exchange including Δ’s
- Author
-
M. Piarulli
- Subjects
Physics ,Particle physics ,Range (particle radiation) ,010308 nuclear & particles physics ,QC1-999 ,Nuclear Theory ,Degrees of freedom (physics and chemistry) ,Order (ring theory) ,Non local ,01 natural sciences ,Pion ,0103 physical sciences ,Effective field theory ,Nuclear Experiment ,010306 general physics ,Nucleon - Abstract
A coordinate-space nucleon-nucleon potential is constructed in chiral effective field theory (χ EFT) retaining pions, nucleons and Δ-isobars as explicit degrees of freedom. The calculation of the potential is carried out by including one- and two-pionexchange contributions up to next-to-next-to-leading order (N2LO) and contact interactions up to next-to-next-to-next-to-leading order (N3LO). The low-energy constants multiplying these contact interactions are fitted to the 2013 Granada database in the laboratory-energy range 0–300 MeV.
- Published
- 2016
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