Spin-isospin resonances: A self-consistent covariant description
Nuclear Theory
2008-11-26 v1
Abstract
For the first time a fully self-consistent charge-exchange relativistic RPA based on the relativistic Hartree-Fock (RHF) approach is established. The self-consistency is verified by the so-called isobaric analog state (IAS) check. The excitation properties and the non-energy weighted sum rules of two important charge-exchange excitation modes, the Gamow-Teller resonance (GTR) and the spin-dipole resonance (SDR), are well reproduced in the doubly magic nuclei Ca, Zr and Pb without readjustment of the particle-hole residual interaction. The dominant contribution of the exchange diagrams is demonstrated.
Cite
@article{arxiv.0808.3159,
title = {Spin-isospin resonances: A self-consistent covariant description},
author = {Haozhao Liang and Nguyen Van Giai and Jie Meng},
journal= {arXiv preprint arXiv:0808.3159},
year = {2008}
}
Comments
4 pages, 3 figures. Phys. Rev. Lett. in press