%0 Journal Article
%A Benito García, Jaime
%A Fraile Prieto, Luis Mario
%A Rodríguez Murias, Javier
%A Sánchez Tembleque Verbo, Víctor
%A Vedia Fernández, María Victoria
%T New β-decaying state in Bi-214
%D 2021
%@ 2469-9985
%U https://hdl.handle.net/20.500.14352/4728
%X A new beta-decaying state in Bi-214 has been identified at the ISOLDE Decay Station at the CERN-ISOLDE facility. A preferred I-pi = (8(-)) assignment was suggested for this state based on the beta-decay feeding pattern to levels in Po-214 and shell-model calculations. The half-life of the I-pi = (8) state was deduced to be T-1/2 = 9.39(10) min. The deexcitation of the levels populated in Po-214 by the beta decay of this state was investigated via gamma-gamma coincidences and a number of new levels and transitions was identified. Shell-model calculations for excited states in Bi-214 and Po-214 were performed using two different effective interactions: the H208 and the modified Kuo-Herling particle interaction. Both calculations agree on the interpretation of the new beta-decaying state as an I-pi = 8 - isomer and allow for tentative assignment of shell-model states to several high-spin states in Po-214.
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