Density-dependent effective nucleon-nucleon interaction from chiral three-nucleon forces Academic Article uri icon

abstract

  • We derive density-dependent corrections to the in-medium nucleon-nucleon interaction from the leading-order chiral three-nucleon force. To this order there are six distinct one-loop diagrams contributing to the in-medium nucleon-nucleon scattering T matrix. Analytic expressions are presented for each of these in both isospin-symmetric nuclear matter and nuclear matter with a small isospin asymmetry. The results are combined with the low-momentum nucleon-nucleon potential Vlow,k to obtain an effective density-dependent interaction suitable for nuclear structure calculations. The in-medium interaction is decomposed into partial waves up to orbital angular momentum L=2. Our results should be particularly useful in calculations where an exact treatment of the chiral three-nucleon force would otherwise be computationally prohibitive. © 2010 The American Physical Society.

author list (cited authors)

  • Holt, J. W., Kaiser, N., & Weise, W.

citation count

  • 113

publication date

  • February 2010