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

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.

arXiv comment17 pages, 6 figures, elsart class. Minor revisions, Nuclear Physics A in print

References in corpus (15)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Relativistic Hartree-Bogoliubov model with density-dependent meson-nucleon couplings
• Quasiparticle random phase approximation based on the relativistic Hartree-Bogoliubov model
• Quasiparticle random phase approximation based on the relativistic Hartree-Bogoliubov model II: Nuclear spin and isospin excitations
• Chiral approach to nuclear matter: Role of two-pion exchange with virtual delta-isobar excitation
• Relativistic Random-Phase Approximation with density-dependent meson-nucleon couplings
• Relativistic nuclear model with point-couplings constrained by QCD and chiral symmetry
• Relativistic nuclear energy density functional constrained by low-energy QCD
• Low Momentum Nucleon-Nucleon Interaction and Fermi Liquid Theory
• Landau parameters of nuclear matter in the spin and spin-isospin channels
• Nuclear Many-Body Dynamics constrained by QCD and Chiral Symmetry
• Random-phase approximation based on relativistic point-coupling models
• Quasi-particle interaction in nuclear matter from chiral pion-nucleon dynamics
• Nuclear pairing from chiral pion-nucleon dynamics
• Iterated and irreducible pion-photon exchange in nuclei

Cited by in corpus (13)

• Toward ab initio density functional theory for nuclei
• Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations
• Self-consistent relativistic quasiparticle random-phase approximation and its applications to charge-exchange excitations and $\beta$-decay half-lives
• Spin-isospin nuclear response using the existing microscopic Skyrme functionals
• Feasibility of the finite amplitude method in covariant density functional theory
• Nuclear ${\beta }^{+}$/EC decays in covariant density functional theory and the impact of isoscalar proton-neutron pairing
• Nuclear $\beta$-decay half-lives in the relativistic point-coupling model
• Hypernuclear single particle spectra based on in-medium chiral SU(3) dynamics
• Nuclear charge-exchange excitations based on relativistic density-dependent point-coupling model
• The quest for novel modes of excitation in exotic nuclei
• In-medium chiral SU(3) dynamics and hypernuclear structure
• Nuclear Energy Density Functionals Constrained by Low-Energy QCD
• Point-Coupling Models from Mesonic Hypermassive Limit and Mean-Field Approaches