Shapes of Pb 192,190 ground states from β -decay studies using the total-absorption technique

Estévez, Aguado M. E. and Algora, Alejandro and Agramunt, J. and Rubio, B. and Taín, J. L. and Véghné Csatlós, Margit and Csige, Lóránt and Dombrádi, Zsolt and Krasznahorkay, Attila (2015) Shapes of Pb 192,190 ground states from β -decay studies using the total-absorption technique. PHYSICAL REVIEW C, 92 (4). ISSN 2469-9985

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Abstract

The beta decay of 192,190Pb has been studied using the total absorption technique at the ISOLDE(CERN) facility. The beta-decay strength deduced from the measurements, combined with QRPA theoretical calculations, allow us to infer that the ground states of the 192,190Pb isotopes are spherical. These results represent the first application of the shape determination method using the total absorption technique for heavy nuclei and in a region where there is considerable interest in nuclear shapes and shape effects.

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