Density-dependent N N interaction from subleading chiral 3 N forces: Short-range terms and relativistic corrections

摘要: We derive from the subleading contributions to chiral three-nucleon force (short-range terms and relativistic corrections, published in Phys. Rev. C84, 054001 (2011)) a density-dependent two-nucleon interaction $V_\text{med}$ isospin-symmetric nuclear matter. The momentum $k_f$-dependent potentials associated with isospin operators ($1$ $ \vec\tau_1\!\cdot\!\vec\tau_2$) five independent spin-structures are expressed of loop functions, which either given closed analytical form or require at most one numerical integration. Our results for helpful implement 3N-forces into many-body calculations.