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Title Internal decay of the (10) intruder state in 184TI
Author(s) Van Beveren, C (Leuven U.) ; Andreyev, A N (York U., England ; JAEA, Ibaraki) ; Barzakh, A E (St. Petersburg, INP) ; Cocolios, T E (CERN ; Manchester U.) ; Fedorov, D (St. Petersburg, INP) ; Fedosseev, V N (CERN) ; Ferrer, R (Leuven U.) ; Huyse, M (Leuven U.) ; Köster, U (Laue-Langevin Inst.) ; Lane, J (Paisley U.) Mostrar todos los 21 autores
Publication APS, 2015
Number of pages 8
In: Phys. Rev. C 92 (2015) 014325
DOI 10.1103/PhysRevC.92.014325
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN ISOLDE
Abstract Decay spectroscopy of 184TI has been performed at the CERN Isotope Separator On-Line (ISOLDE) facility. An excitation energy of 506.1(1) keV and a half-life of 47.1(7) ms of the intruder based (10−) state have been extracted. The internal decay characteristics of this state are determined and discussed, extending the systematics of such states in the even-mass thallium nuclei below neutron midshell at N=104. The retardation factors of the isomeric M2 and E3 transitions are deduced and compared with retardation factors in neighboring odd-mass and even-mass thallium isotopes. The new information is combined with a review of hindered and unhindered α-decay data of 187192Bi populating levels in daughter nuclei 183188Tl and supports the interpretation of the intruder character of the (10) state in 184TI.
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