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- W134423312 abstract "The charge-exchange excitations for the /sup 48/Ca..-->../sup 48/Sc, /sup 90/Zr..-->../sup 90/Nb, and /sup 208/Pb..-->../sup 208/Bi isobar pairs are calculated using the methods of the theory of finite Fermi systems with the single-particle continuum taken into account exactly. Transition densities for the isobar-analog states, Gamow-Teller resonances, dipole (L = 1, S = 0) resonances, and spin-dipole (L = 1, S = 1) resonances are calculated. Differential cross sections for the ( p,n) reactions which excite these resonances are calculated in the distorted-wave impulse approximation for proton energies E/sub p/ in the 100--200 MeV range. A detailed comparison with experimental data is performed in order to determine the nucleon-nucleon effective interaction in the charge-exchange channel as well as the local quasiparticle charge e/sub q/(sigmatau) that characterizes the quenching of low-energy spin-flip transitions. It is shown, in particular, that the theory gives a good description of experiment for the value g' = 1.1 (G/sup prime//sub 0/ = 330 MeVxfm/sup 3/) of the Landau-Migdal strength parameter and for e/sub q/(sigmatau)roughly-equal0.8." @default.
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- W134423312 date "1984-06-01" @default.
- W134423312 modified "2023-09-26" @default.
- W134423312 title "Microscopic description of charge-exchange nuclear resonances excited in ( p,n) reactions" @default.
- W134423312 hasPublicationYear "1984" @default.
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