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Nuclear density functional constrained by low-energy QCD
Paolo Finelli, Norbert Kaiser, Dario Vretenar +1
We have developed a relativistic point-coupling model of nuclear many-body dynamics constrained by the low-energy sector of QCD. The effective Lagrangian is characterized by densit…
Nuclear pairing from chiral pion-nucleon dynamics
N. Kaiser, T. Niksic, D. Vretenar
We use a recently improved version of the chiral nucleon-nucleon potential at next-to-next-to-leading order to calculate the pairing gap in isospin-symmetric nuclear matter…
Spin-asymmetry energy of nuclear matter
N. Kaiser
We calculate the density-dependent spin-asymmetry energy of isospin-symmetric nuclear matter in the three-loop approximation of chiral perturbation theory. The interaction…
Spin-orbit coupling in nuclei and realistic nucleon-nucleon potentials
N. Kaiser
We analyze the spin-orbit coupling term in the nuclear energy density functional in terms of a zero-range NN-contact interaction and finite-range contributions from two-pion exchan…
Chiral approach to nuclear matter: Role of two-pion exchange with virtual delta-isobar excitation
S. Fritsch, N. Kaiser, W. Weise
We extend a recent three-loop calculation of nuclear matter in chiral perturbation theory by including the effects from two-pion exchange with single and double virtual -i…