Low-energy neutron-deuteron reactions with N3LO chiral forces

Abstract

We solve three-nucleon Faddeev equations with nucleon-nucleon and three-nucleon forces derived consistently in the framework of chiral perturbation theory at next-to-next-to-next-to-leading order in the chiral expansion. In this first investigation we include only matrix elements of the three-nucleon force for partial waves with the total two-nucleon (three-nucleon) angular momenta up to 3 (5/2). Low-energy neutron-deuteron elastic scattering and deuteron breakup reaction are studied. Emphasis is put on Ay puzzle in elastic scattering and cross sections in symmetric-space-star and neutron-neutron quasi-free-scattering breakup configurations, for which large discrepancies between data and theory have been reported.

22 pages, 7 figures

References in corpus (8)

• Chiral effective field theory and nuclear forces
• Structure of A=10-13 nuclei with two- plus three-nucleon interactions from chiral effective field theory
• Local three-nucleon interaction from chiral effective field theory
• Three-Nucleon Low-Energy Constants from the Consistency of Interactions and Currents in Chiral Effective Field Theory
• Subleading contributions to the chiral three-nucleon force I: long-range terms
• Two-pion exchange three-nucleon potential: O(q^4) chiral expansion
• Relativity and the low energy nd Ay puzzle
• The nn quasi-free nd breakup cross section: discrepancies to theory and implications on the 1S0 nn force

Cited by in corpus (11)

• Neutron matter from chiral two- and three-nucleon calculations up to N${}^3$LO
• Efficient calculation of chiral three-nucleon forces up to N3LO for ab initio studies
• Historical perspective and future prospects for nuclear interactions
• Three-nucleon force at large distances: Insights from chiral effective field theory and the large-N_c expansion
• Effect of the N3LO three-nucleon contact interaction on p-d scattering observables
• The relevance of pion-exchange contributions versus contact terms in the chiral effective field theory description of nucleon-nucleon scattering
• Three-nucleon system: Irreducible and reducible contributions of the three-nucleon force
• High-precision nuclear forces from chiral EFT: State-of-the-art, challenges and outlook
• Momentum dependent nucleon-nucleon contact interaction from a relativistic Lagrangian
• Nucleon-deuteron scattering with the JISP16 potential
• An overview of symmetric nuclear matter properties from chiral interactions up to fourth order of the chiral expansion