Gamow-teller strength distribution in the beta-decay of ag-100 from total-absorption gamma-spectrometry
Batist, L × Bykov, A Moroz, F Wittmann, V Alkhazov, Gd Keller, H Kirchner, R Klepper, O Roeckl, E Huyse, Marc Van Duppen, Piet Reusen, G Plochocki, A Pfutzner, M Rykaczewski, K Szerypo, J Zylicz, J Brown, Ba #
Zeitschrift für Physik. A, Hadrons and nuclei vol:351 issue:2 pages:149-153
The EC/beta(+)-decay of the odd-odd nucleus Ag-100 was studied by means of total absorption gamma-ray spectrometry. Most of the Gamow-Teller strength was found to be concentrated at an excitation energy of 5.6 MeV in Pd-100, the FWHM of this resonance being 1.5 MeV. The measured strength distribution which is interpreted within the BCS approximation as being due to the dominant population of four-quasiparticle excitations, resembles the distribution predicted by an advanced shell-model calculation for the Ag-98 --> Cd-98 decay.