Self-consistent relativistic random phase approximation with vacuum polarization
arXiv:nucl-th/0504052 · doi:10.1103/PhysRevC.72.034301
Abstract
We present a theoretical formulation for the description of nuclear excitations within the framework of relativistic random-phase approximation whereby the vacuum polarization arising from nucleon-antinucleon fields is duly accounted for. The vacuum contribution to Lagrangian is explicitly described as extra new terms of interacting mesons by means of the derivative expansion of the effective action. It is shown that the self-consistent calculation yields zero eigenvalue for the spurious isoscalar-dipole state and also conserves the vector-current density.
5pages, 3 figures
References in corpus (7)
- The time-dependent relativistic mean-field theory and the random phase approximation
- Effect of tensor couplings in a relativistic Hartree approach for finite nuclei
- Collective modes of asymmetric nuclear matter in Quantum HadroDynamics
- Collective multipole excitations in a microscopic relativistic approach
- Self-consistent description of nuclear compressional modes
- Chiral Sigma Model with Pion Mean Field in Finite Nuclei
- Relativistic Hartree approach with exact treatment of vacuum polarization for finite nuclei