Unified analysis of spin isospin responses of nuclei
- Department of Physics, Kyushu University, Higashi, Fukuoka 812-8581 (Japan)
- Faculty of Computer and Information Sciences, Hosei University, Koganei, Tokyo 184-8584 (Japan)
- Department of Physics, The University of Tokyo, Bunkyo, Tokyo 113-0033 (Japan)
We investigate the Gamow-Teller (GT) response functions at a momentum transfer of q=0 fm{sup -1} and the pionic response functions for quasielastic scattering (QES) at q{approx_equal}1.7 fm{sup -1} using the continuum random phase approximation with the {pi}+{rho}+g{sup '} model interaction. The Landau-Migdal (LM) parameters, g{sub NN}{sup '} and g{sub N{delta}}{sup '}, are estimated by comparing the calculations with recent experimental data. The peak of the GT resonance and the pionic response functions below the QES peak constrain g{sub NN}{sup '}, whereas the quenching of the GT total strength and the enhanced pionic strength around the QES peak provide information about g{sub N{delta}}{sup '}. We obtained g{sub NN}{sup '}=0.6{+-}0.1 and g{sub N{delta}}{sup '}=0.35{+-}0.16 at q=0 fm{sup -1} and g{sub NN}{sup '}=0.7{+-}0.1 and g{sub N{delta}}{sup '}=0.3{+-}0.1 at q{approx_equal}1.7 fm{sup -1}. These results indicate that the q dependence of the LM parameters is weak.
- OSTI ID:
- 20771161
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 72, Issue 6; Other Information: DOI: 10.1103/PhysRevC.72.067303; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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