Direct-decay properties of charge-exchange spin giant resonances

V. A. Rodin; M. H. Urin

doi:10.1016/S0375-9474(01)00632-7

Direct-decay properties of charge-exchange spin giant resonances

Nuclear Theory 2009-11-06 v1

Authors: V. A. Rodin , M. H. Urin

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Abstract

An extended continuum-RPA approach is applied to describe direct-decay properties of spin giant resonances in $^{208}$ Bi and $^{90}$ Nb. Partial branching ratios for direct proton decay from these resonances are evaluated. The branching ratio for $\gamma$ -decay from the spin-dipole resonance to the Gamow-Teller resonance (main peak) is estimated. The saturation-like behaviour of the mean doorway-state spreading width in $^{208}$ Pb is discussed in connection with the branching ratio for direct proton decay from the spin-monopole resonance and the Gamow-Teller strength distribution.

Keywords

charge-exchange spin giant resonances direct decay continuum-rpa proton decay branching ratio spreading width

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@article{arxiv.nucl-th/0008062,
  title  = {Direct-decay properties of charge-exchange spin giant resonances},
  author = {V. A. Rodin and M. H. Urin},
  journal= {arXiv preprint arXiv:nucl-th/0008062},
  year   = {2009}
}

Comments

6 pages, 2 figures, Talk given at the International Conference on Giant Resonances (GR2000),June 2000, Osaka, Japan

Direct-decay properties of charge-exchange spin giant resonances

Abstract

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