Chiral pion-nucleon dynamics in finite nuclei: spin-isospin excitations
Nuclear Theory
2008-11-26 v2
Abstract
The nuclear density functional framework, based on chiral dynamics and the symmetry breaking pattern of low-energy QCD, is extended to the description of collective nuclear excitations. Starting from the relativistic point-coupling Lagrangian previously introduced [Nucl. Phys. A770 (2006) 1], the proton-neutron (quasiparticle) random phase approximation is formulated and applied to investigate the role of chiral pion-nucleon dynamics in excitation modes involving spin and isospin degrees of freedom, e.g. isobaric analog states and Gamow-Teller resonances.
Keywords
Cite
@article{arxiv.nucl-th/0612026,
title = {Chiral pion-nucleon dynamics in finite nuclei: spin-isospin excitations},
author = {P. Finelli and N. Kaiser and D. Vretenar and W. Weise},
journal= {arXiv preprint arXiv:nucl-th/0612026},
year = {2008}
}
Comments
17 pages, 6 figures, elsart class. Minor revisions, Nuclear Physics A in print