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On the Fermi and Gamow-Teller strength distribution in medium-heavy mass nuclei

V. A. Rodin·M. H. Urin
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Abstract

An isospin-selfconsistent approach based on the Continuum-Random-Phase-Approximation (CRPA) is applied to describe the Fermi and Gamow-Teller strength distributions within a wide excitation-energy interval. To take into account nucleon pairing in open-shell nuclei, we formulate an isospin-selfconsistent version of the proton-neutron-quasiparticle-CRPA (pn-QCRPA) approach by incorporating the BCS model into the CRPA method. The isospin and configurational splittings of the Gamow-Teller giant resonance are analyzed in single-open-shell nuclei. The calculation results obtained for $^{208}$Bi, $^{90}$Nb, and Sb isotopes are compared with available experimental data.

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V. A. Rodin, M. H. Urin. 2003-01-03. On the Fermi and Gamow-Teller strength distribution in medium-heavy mass nuclei. https://doi.org/10.1134/1.1634320

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