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Chiral pion-nucleon dynamics in finite nuclei: spin-isospin excitations

P. Finelli·N. Kaiser·D. Vretenar·W. Weise
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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.

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P. Finelli, N. Kaiser, D. Vretenar, W. Weise. 2007-04-26. Chiral pion-nucleon dynamics in finite nuclei: spin-isospin excitations. https://doi.org/10.1016/j.nuclphysa.2007.04.007

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