Non-Linear derivative interactions in relativistic hadrodynamics
Nuclear Theory
2009-08-17 v2
Abstract
The Lagrangian density of Relativistic Hadrodynamics (RHD) is extended by introducing non-linear derivative (NLD) interactions of the nucleon with the meson fields. As a consequence, the nucleon selfenergy becomes both momentum and density dependent. With a single cut-off parameter, which regulates the NLD Lagrangian, our approach is compatible with results from microscopic nuclear matter calculations as well as with Dirac phenomenology. It also reproduces the correct behavior of the real part of the proton-nucleus potential both at low and at high proton energies.
Cite
@article{arxiv.0904.1130,
title = {Non-Linear derivative interactions in relativistic hadrodynamics},
author = {T. Gaitanos and M. Kaskulov and U. Mosel},
journal= {arXiv preprint arXiv:0904.1130},
year = {2009}
}
Comments
Typos corrected, extended discussion and references. To appear in Nuclear Physics A