Isospin-breaking two-nucleon force with explicit Delta-excitations

Abstract

We study the leading isospin-breaking contributions to the two-nucleon two-pion exchange potential due to explicit Delta degrees of freedom in chiral effective field theory. In particular, we find important contributions due to the delta mass splittings to the charge symmetry breaking potential that act opposite to the effects induced by the nucleon mass splitting.

10 pages, 4 figures

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Cited by in corpus (12)

• Modern Theory of Nuclear Forces
• Nuclear effective field theory: status and perspectives
• Chiral three-nucleon force at N^4LO I: Longest-range contributions
• Two-pion exchange electromagnetic current in chiral effective field theory using the method of unitary transformation
• Chiral three-nucleon force at N^4LO II: Intermediate-range contributions
• Precision determination of pion-nucleon coupling constants using effective field theory
• Three-nucleon force in chiral EFT with explicit $\Delta (1232)$ degrees of freedom: Longest-range contributions at fourth order
• Three-nucleon force at large distances: Insights from chiral effective field theory and the large-N_c expansion
• Three-body forces and Efimov physics in nuclei and atoms
• Three-pion exchange nucleon-nucleon potentials with virtual $\Delta$-isobar excitation
• High-precision nuclear forces from chiral EFT: State-of-the-art, challenges and outlook
• Enhancement of deltaful two-pion exchange nuclear forces