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New spectroscopic information on Tl-211,Tl-213: A changing structure beyond the N=126 shell closure
Journal article   Open access  Peer reviewed

New spectroscopic information on Tl-211,Tl-213: A changing structure beyond the N=126 shell closure

A. Gottardo, J. J. Valiente-Dobon, G. Benzoni, A. Morales, A. Gadea, S. Lunardi, P. Boutachkov, A. M. Bruce, M. Gorska, J. Grebosz, …
Physical review. C, Vol.99(5)
23/05/2019

Abstract

Physical Sciences Physics Physics, Nuclear Science & Technology
The neutron-rich isotopes Tl-211,Tl-213, beyond the N = 126 shell closure, have been studied for the first time in isomer gamma-ray decay, exploiting the fragmentation of a primary uranium beam at the Fragment Separator-Rare Isotopes Investigation at GSI setup. The observed isomeric states in Tl-211,Tl-213 show a deviation from the seniority-like scheme of Tl-209. The possible interpretation of the data is discussed on the basis of energy-level systematics and shell-model calculations.
url
https://doi.org/10.1103/PhysRevC.99.054326View
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