Decay of the Giant Gamow-Teller Resonance inBi208

6 April 1981

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 46 (14), 902-906
https://doi.org/10.1103/physrevlett.46.902

Abstract

In coincidence with tritons from the

{}^{208}{Pb}

(

{}^{3}{He}

t

)

{}^{208}{Bi}

reaction proton spectra corresponding to decay into definite final states in

{}^{207}{Pb}

have been measured. The coincidence yield is described as exclusively coming from the decay of two resonances, the isobaric analog state (IAS) and the Gamow-Teller (GT) resonance. An analysis in terms of a formation cross section times a branching ratio gives a good description for the IAS and for the shape of the GT resonance. The yield from the GT resonance is, however, an order of magnitude larger than calculated.

Keywords

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