High-spin states of 218Th

2020/07/01 by D O’Donnell, D. O’Donnell, R. D. Page +81
Physics and Astronomy · #Astronomical and nuclear sciences #Atomic and Molecular Physics #Nuclear physics research studies

paper · pdf · doi:10.1088/1361-6471/aba16c

openalex publication_date 2020/07/01 · openalex created_date 2020/07/10 · openalex updated_date 2026/07/30

Abstract

Abstract High-spin states in the N = 128 nucleus 218 Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of 218 Th prompt γ rays have been correlated with the α decay of the daughter nucleus 214 Ra. The level scheme representing the decay of excited states has been extended to (16 + ) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.

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