Microscopic structure of the Gamow-Teller resonance in 208Bi

doi:10.1016/0370-2693(94)90277-1

Physics Letters B

Volume 323, Issue 2, 10 March 1994, Pages 107-112

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Abstract

The microscopic structure of the Gamow-Teller resonance at E_x = 15.6 MeV in ²⁰⁸Bi has been investigated by observing its direct proton decay to the neutron-hole states in ²⁰⁷Pb following its excitation via the ²⁰⁸Pb(³He,t) reaction at $E(^{3} He) = 450 MeV$ and θ = 0°. The total width of the resonance as well as total and partial escape widths, associated with proton decay, have been determined. The total escape width was found to be only 4.9 ± 1.3%. A re-examination of several recent theoretical estimates becomes desirable in view of the limited agreement with this value.

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Physics Letters B

Abstract

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Recent results from (<sup>3</sup>He,t) charge-exchange reactions

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Spin-isospin responses of <sup>71</sup>Ga for solar neutrinos studied by <sup>71</sup>Ga(<sup>3</sup>He,tγ) <sup>71</sup>Ge reaction

Spin-isospin resonances in nuclei