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Nuclear Structure of 124Xe Studied with beta+/EC-decay

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Title: Nuclear Structure of 124Xe Studied with beta+/EC-decay
Author: Radich, Allison J.
Department: Department of Physics
Program: Physics
Advisor: Garrett, Paul
Abstract: As part of a broader program to study the evolution of collectivity in the even-even nuclei above tin, a beta+/EC-decay measurement of 124Cs into 124Xe was made with the 8pi spectrometer at the TRIUMF-ISAC facility. A very high-statistics data set was collected and the gamma-gamma coincidence data were analyzed, greatly extending the 124Xe level scheme. Several weak E2 transitions into excited 0+ states in 124Xe were observed for the first time. The B(E2) transition strengths of such low-spin transitions are important in determining collective properties, currently poorly characterized in this neutron-deficient region. A new beta+/EC-decay branch from a high-spin 124Cs isomer was observed for the first time. Decay of the (7)+ isomer populates high-spin excited states in 124Xe that are otherwise inaccessible through the beta decay of the 1+ 124Cs ground state. Combining gamma-gamma and gamma-electron coincidence data, several new transitions in the isomeric decay of 124Cs have been observed.
URI: http://hdl.handle.net/10214/9171
Date: 2015-09
Rights: Attribution-NonCommercial-NoDerivs 2.5 Canada
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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada